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Rolf Jansen

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School Of Earth and Space Exploration
Research Scientist
Academic Professional, TEMPE Campus, Mailcode 6004
Biography: 

Rolf Jansen's research focuses on ground- and space-based ultraviolet–mid-infrared broad- and narrow-band surface photometry and spectroscopy of relatively nearby galaxies. His aim is to study their content and to unravel their formation and assembly histories as a function of galaxy type, luminosity, and cosmic environment, and to track the hierarchical assembly of galaxies over time to the present. He served as instrument scientist for a NASA concept study into a next-generation UV--optical space telescope, provided input and support to the James Webb Space Telescope project, and is currently a member of a Nancy Grace Roman Space Telescope (formerly WFIRST) Science Investigation Team. He also provides computer and astronomical data analysis support within the SESE Cosmology Initiative.

Education: 

Ph.D. Univ. of Groningen, Netherlands 2000

Research Interests: 

Rolf Jansen's research focuses on ground- and space-based ultraviolet–mid-infrared broad- and narrow-band surface photometry and spectroscopy of relatively nearby galaxies. His aim is to study their content and to unravel their formation and assembly histories as a function of galaxy type, luminosity, and cosmic environment, and to track the hierarchical assembly of galaxies over time to the present. He served as Instrument Scientist for a NASA concept study into a next-generation UV--optical space telescope, provided input and support to the James Webb Space Telescope project, and is currently a member of a Nancy Grace Roman Space Telescope (formerly WFIRST) Science Investigation Team. He also provides computer and astronomical data analysis support within the SESE Cosmology Initiative.

NASA's Astronomy Picture of the Day: http://www.apod.nl/.

Research Group: 
  • Nolan, L., ASU/NASA Space Grant project to find what powers the faint (micro-Jansky) radio source population (2019-2020)
  • Bechtel, S., SESE Senior Thesis on the structural analysis of intermediate-redshift well-resolved galaxies within the JWST North Ecliptic Pole Time-Domain Field (2019-2020)
  • White, C.W. SESE Senior Thesis on the selection of AGN in the JWST North Ecliptic Pole Time-Domain Field (2018-2019)
  • Jones, V.R. SESE Senior Thesis on the analysis of object variability in the JWST North Ecliptic Pole Time-Domain Field (2018-2019)
  • Huckabee, G. Honors Thesis to study the origin of the galactic magnetic field in UGC 9665 (2018-2019)
  • Tyburczy, T., ASU/NASA Space Grant project to search for brown dwarfs within the JWST North Ecliptic Pole Time-Domain Field (2018-2019)
  • Dotson, B., Honors Thesis on a star tracker development demonstration using an off-the-shelf active pixel sensor (2017-2018)
  • Jones, V.R., ASU/NASA Space Grant project to analyse the astrometry in the JWST North Ecliptic Pole Time-Domain Field (2017-2018)
  • Companik, C., Honors Thesis on strong gravitational lensing to detect dark matter (2017-2018)
  • Vehonsky, J., Honors Thesis on the reduction of LBT/LBC images (2015-2016)
  • Klapmeyer, K., ASU/NASA Space Grant project to study the radial dependence of visible--near-IR surface brightness in NGC 5888 (2014-2015)
  • Kim, D., Ph.D. Dissertation on the Analysis of the Intrinsic Visible V / mid-Infrared L Colors of Galaxies at Redshifts z < 2 (2013-2019)
  • Parkash, V., Senior Honors Thesis at Union College, NY, on near-IR imaging of nearby galaxies (2013-2014) [served as remote co-advisor]
  • Hutchison, H., UG Research Experience project to align and resample near-IR images of nearby galaxies onto the 2MASS astrometric system (2013)
  • Landeen, R., UG Research Experience project to find background QSOs along sightlines through Local Group galaxies (2013)
  • Shewcraft, T., UG Research Experience & RA project to process ground-based images of the Magellanic Clouds (2012-2014)
  • Horning, M.E., Physics Research Rotation project to design, build, and commission a prototype hybrid LED and incandescent lighting system for flat fielding VATT images (2008)
  • Kim, H., Ph.D. Dissertation on the resolved stellar populations in nearby star-forming galaxies: M83, NGC4214, and CGCG269-049 (2007-2012) [specifically the latter galaxy]
  • Kim, H., Ph.D. research program to study the specific frequency and luminosity function of satellites/companions of galaxies in clusters, groups, and under-dense regions (2005-2007) [this project was put on hiatus due to several observing runs that were lost to bad weather]
  • O'Toole, M., UG Research Experience project to shed light on the evolutionary state and proper classification of S0/a and I0 galaxies (2005)
  • Tamura, K., Ph.D. Dissertation on pixel-based dust-extinction mapping in nearby galaxies and a new approach to lifting the veil of dust (2003-2009)
  • Hathi, N.P., Ph.D. Dissertation on the structural and physical properties of high redshift galaxies in the Hubble Ultra Deep Field (2003-2008) [specifically profiles of compact galaxies at z~4--6]
Publications: 
  • Smith, B.M., Windhorst, R.A., Cohen, S.H., Koekemoer, A.M., Jansen, R.A., White, C.W., Borthakur, S., Hathi, N.P., Jiang, L., Rutkowski, M.J., Ryan, R.E. Jr., Inoue, A.K., O'Connell, R.W., MacKenty, J.W., & Silk, J.I. The Lyman Continuum Escape Fraction of Galaxies and AGN in the GOODS Fields. The Astrophysical Journal (2020), (in press) [arXiv:2004.04360]
  • Kim, D., Jansen, R.A., Windhorst, R.A., Cohen, S.H., & McCabe, T. Analysis of the Spatially Resolved V - 3.6micron Colors and Dust Extinction in 257 Nearby NGC and IC Galaxies. The Astrophysical Journal, Vol. 884, pp.21(1-16) [arXiv:1901.00565]
  • Joshi, B.A., Cohen, S., Windhorst, R.A., Jansen, R.A., Pirzkal, N., & Hathi, N.P. Spectrophotometric Redshifts for z ~ 1 Galaxies and Predictions for Number Densities with WFIRST and Euclid. The Astrophysical Journal (2019), Vol. 883, pp.157(1-14) [arXiv:1903.08705]
  • Frye, B.L., Pascale, M.,  Qin, Y., Zitrin, A., Diego, J., Walth, G., Yan, H., Conselice, C.J., Alpaslan, M., Bauer, A., Busoni, L., Coe, D., Cohen, S.H., Dole', H., Donahue, M., Georgiev, I., Jansen, R.A., Limousin, M., Livermore, R., Norman, D., Rabien, S., & Windhorst, R. PLCK G165.7+67.0: Analysis of a Massive Lensing Cluster in an HST Census of Submillimeter Giant Arcs Selected Using Planck / Herschel. The Astrophysical Journal (2019), Vol. 871, pp.51(1-21) [arXiv:1805.04790]
  • Jansen, R.A., & Windhorst, R.A. The James Webb Space Telescope North Ecliptic Pole Time-Domain Field. I. Field Selection of a JWST Community Field for Time-Domain Studies. Publications of the Astronomical Society of the Pacific (2018), Vol. 130, pp.124001(1-15) [arXiv:1807.05278]
  • Ashcraft, T.A., Windhorst, R.A., Jansen, R.A., Cohen, S.H., Grazian, A., Paris, D., Fontana, A., Giallongo, E., Speziali, R., Testa, V., Boutsia, K., O'Connell, R.W., Rutkowski, M.J., Ryan, R.E., Scarlata, C., & Weiner, B. Ultra-deep Large Binocular Camera U-band Imaging of the GOODS-North Field: Depth vs. Resolution. Publications of the Astronomical Society of the Pacific (2018), Vol. 130, pp.064102(1-14) [arXiv:1703.09874]
  • Smith, B.M., Windhorst, R.A., Jansen, R.A., Cohen, S.H., Jiang, L., Dijkstra, M., Koekemoer, A.M., Bielby, R., Inoue, A.K., MacKenty, J.W., O'Connell, R.W., & Silk, J.I.  HST/WFC3 Observations of Escaping Lyman Continuum Radiation from Galaxies and Weak AGN at Redshifts z ~ 2.3--4.1. The Astrophysical Journal (2018), Vol. 853, pp.191 [arXiv:1602.01555]
  • Grazian, A., Giallongo, E., Paris, D., Boutsia, K., Dickinson, M., Santini, P., Windhorst, R.A., Jansen, R.A., Cohen, S.H., Ashcraft, T.A., Scarlata, C., Rutkowski, M.J., Vanzella, E., Cusano, F., Cristiani, S., Giavalisco, M., Ferguson, H.C., Koekemoer, A.M., Grogin, N.A., Castellano, M., Fiore, F., Fontana, A., Marchi, F., Pedichini, F., Pentericci, L., Amorin, R., Barro, G., Bionchi, A., Bongiorno, A., Faber, S.M., Fumana, M., Galametz, A., Guaita, L., Kocevski, D.D., Merlin, E., Nonino, M., O'Connell, R.W., Pilo, S., Ryan, R.E., Sani, E., Speziali, R., Testa, V., Weiner, B., & Yan, H. The Lyman Continuum escape fraction of faint galaxies at z ~ 3.3 in the CANDELS/GOODS-North, EGS, and COSMOS fields with LBC. Astronomy & Astrophysics (2017), Vol. 602, pp.A18(1-16)
  • Kim, D., Jansen, R.A., & Windhorst, R.A.  Analysis of the Intrinsic Mid-IR L-band to Visible--near-IR Flux Ratios in Spectral Synthesis Models of Composite Stellar Populations.  The Astrophysical Journal (2017), Vol. 840, pp. 28(1-20)
  • Driver, S.P., Andrews, S.K., Davies, L.J., Robotham, A.S.G., Wright, A.H., Windhorst, R.A., Cohen, S.H., Emig, K., Jansen, R.A., & Dunne, L.  Measurements of Extra-Galactic Background Light from the Far-UV to the Far-IR from Deep Ground and Space-based Galaxy Counts.  The Astrophysical Journal (2016), Vol. 827, pp. 108(1-15)
  • Dore', O., Werner, M., Ashby, M., Banerjee, P., Battaglia, N., Bauer, J., Benjamin, R.A., Bleem, L.E., Bock, J., Boogert, A., Bull, P., Capak, P., Chang, T-C., Chiar, J., Cohen, S.H., Cooray, A., Crill, B., Cushing, M., de Putter, R., Driver, S.P., Eifler, T., Feng, C., Ferraro, S., Finkbeiner, D., Gaudi, B.S., Greene, T., Hillenbrand, L., Hoflich, P.A., Hsiao, E., Huffenberger, K., Jansen, R.A., Jeong, W-S., Joshi, B., Kim, D., Kim, M., Kirkpatrick, J.D., Korngut, P., Krause, E., Kriek, M., Leistedt, B., Li, A., Lisse, C., Malhotra, S., Mauskopf, P., Mechtley, M., Melnick, G., Mohr, J., Murphy, J., Neben, A., Neufeld, D., Nguyen, H., Pierpaoli, E., Pyo, J-H., Rhoads, J.E., Rhodes, J., Sandstrom, K., Schaan, E., Schlaufman, K., Silverman, J., Su, K., Stassun, K., Stevens, D., Strauss, M., Tielens, X., Tsai, C-W., Tolls, V., Unwin, S., Viero, M., Windhorst, R.A., & Zemcov, M. Science Impacts of the SPHEREx All-Sky Optical to Near-Infrared Spectral Survey. (2016) Report of the 1st SPHEREx Community Workshop Examining Extragalactic, Galactic, Stellar and Planetary Science: NASA/IPAC). pp. 1-84
  • Windhorst, R.A., Alpaslan, M., Barone-Nugent, R., Cohen, S., Conselice, C., Driver, S., Frye, B., Hathi, N., Hopkins, A., Jansen, R., Konstantopoulos, I., Robotham, A., Shin, T., Wyithe, S., & Yan, H-J. Deep HST WFC3+ACS UV+B+V Imaging of the Best Lensing Compact Massive Galaxy Groups & Clusters to Maximize "First Light" Object Searches with JWST. White Paper submitted to Science Analysis Group #2 of the NASA Cosmic Origins Program Analysis Group (COPAG) to identify compelling HST observations to be done prior to JWST's launch to enable future JWST science (2015)
  • Hathi, N.P., Windhorst, R.A., Yan, H-J., Conselice, C., Konstantopoulos, I., Driver, S., Robotham, A., Hopkins, A., Wyithe, S., Cohen, S., Jansen, R., Frye, B., Alpaslan, M., Barone-Nugent, R., Carrasco-Nunez, D., & Shin, T.  Deep Spitzer/IRAC Imaging of Compact Galaxy Groups/Clusters for JWST "First Light" Search. White Paper submitted to Science Analysis Group #9 of the NASA Cosmic Origins Program Analysis Group (COPAG) to identify compelling Spitzer observations to be done prior to JWST's launch to enable future JWST science (2015). (summarized in SAG9 report (v5), Calzetti et al. May 20 2015, NASA: Greenbelt).
  • Mechtley, M.R., Windhorst, R.A., Ryan, R.E., Schneider, G., Cohen, S.H., Jansen, R.A., Fan, X., Hathi, N.P., Keel, W.C., Koekemoer, A.M., R&ouml;ttgering, H., Scannapieco, E., Schneider, D.P., Strauss, M.A., & Yan, H-J. Near-Infrared Imaging of a z=6.42 QSO Host Galaxy with the Hubble Space Telescope Wide Field Camera 3. The Astrophysical Journal (2012), Vol.756, pp.L38(1-6)
  • Scowen, P.A., Jansen, R.A., Beasley, M.N., Calzetti, D., Fullerton, A.W., Gallagher, J.S. III, McCaughrean, M.J., O'Connell, R.W., Oey, S., & Smith, N.  The Magellanic Clouds Survey: a Bridge to Nearby Galaxies.  White Paper in Responses to the NASA RFI "Science Objectives and Requirements for the Next NASA UV/Visible Astrophysics Mission Concept. (Aug 29 2012) (NASA: Greenbelt), pp.56-62
  • Scowen, P.A., Jansen, R.A., Windhorst, R.A., Rhoads, J.E., Malhotra, S., Stern, D., O'Connell, R.W., Beasley, M.N., for the HORUS and SFC science concept teams. Galaxy Assembly and SMBH/AGN-growth from Cosmic Dawn to the End of Reionization. White Paper in the Responses to the NASA RFI "Science Objectives and Requirements for the Next NASA UV/Visible Astrophysics Mission Concept. (Aug 29 2012) (NASA: Greenbelt), pp.156-162
  • Knierman, K., Knezek, P.M., Scowen, P.A., Jansen, R.A., & Wehner, E. Tidal Tales of Minor Mergers: Unexpected Star Formation in the Tidal Debris of NGC2782. The Astrophysical Journal (2012), Vol.749, pp.L1-L5
  • Jansen, R.A. Windhorst, R.A., Kim, H., Hathi, N.P., Goudfrooij, P., & Collins, N.  Removing the Pattern Noise from all STIS Side-2 CCD data. (2011) in: "The 2010 STScI Calibration Workshop", eds. S. Deustua & C. Oliveira (STScI: Baltimore), p.449-455
  • Eskridge, P.B., Windhorst, R.A., Mager, V.A., & Jansen, R.A. The Young Stellar Population of the Nearby Late-type Galaxy NGC1311. The Astronomical Journal (2010), Vol.140, pp.1137-1149
  • Tamura, K., Jansen, R.A., Eskridge, P.B., Cohen, S.H., & Windhorst, R.A. Lifting the Veil of Dust from NGC959: The Importance of a Pixel-based 2D Extinction Correction. The Astronomical Journal (2010), Vol.139, pp.2557-2565
  • Scowen, P.A., Jansen, R.A., Beasley, M.N., Calzetti, D., Desch, S., Fullerton, A.W., Gallagher, J.S. III, Lisman, D.P., Macenka, S.A., Malhotra, S., McCaughrean, M.J., Nikzad, S., O'Connell, R.W., Oey, S., Padgett, D.L., Rhoads, J.E., Roberge, A., Siegmund, O.H.W., Shaklan, S.B., Smith, N., Stern, D., Tumlinson, J., Windhorst, R.A., & Woodruff, R.A.  Design and implementation of the NUV/optical widefield Star Formation Camera for the Theia Observatory. (2010) in: "Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave", eds. J.M. Oschmann Jr., M.C. Clampin, & H.A. MacEwen (Proc.SPIE, Vol.7731, pp.77314Y(1-10)).
  • Jansen, R.A., Scowen, P.A., Beasley, M., Gallagher, J., O’Connell, R., Calzetti, D., Oey, S., Windhorst, R., & Woodruff, R. A Systematic Study of the Stellar Populations and ISM in Galaxies out to the Virgo Cluster: near-field cosmology within a representative slice of the local universe. ScienceWhite Paper submitted in response to the Astro2010 Decadal Survey by the National Research Council of the National Academy of Sciences (2009).
  • Jansen, R.A., Windhorst, R.A., Rhoads, J.E., Malhotra, S., Stern, D., O’Connell, R., Scowen, P.A., Beasley, M., et al. Galaxy Assembly and SMBH/AGN-growth from Cosmic Dawn to the End of Reionization. ScienceWhite Paper submitted in response to the Astro2010 Decadal Survey by the National Research Council of the National Academy of Sciences (2009).
  • Kasdin, N.J., Atcheson, P., Beasley, M., Belikov, R., Blouke, M., Cady, E., Calzetti, D., Copi, C., Desch, S., Dumont, P., Ebbets, D., Egerman, R., Fullerton, A., Gallagher, J., Green, J., Guyon, O., Heap, S., Jansen, R.A., Jenkins, E., Kasting, J., Keski-Kuha, R., Kuchner, M., Lee, R., Lindler, D., Linfield, R., Lisman, D., Lyon, R., MacKenty, J., Malhotra, S., McCaughrean, M., Mathews, G., Mountain, M., Nikzad, S., O’Connell, B., Oegerle, W., Oey, S., Padgett, D., Parvin, B., Prochaska, X., Rhoads, J., Roberge, A., Saif, B., Savransky, D., Scowen, P., Seager, S., Seery, B., Sembach, K., Shaklan, S., Shull, M., Siegmund, O., Smith, N., Soummer, R., Spergel, D., Stahl, P., Starkman, G., Stern, D., Tenerelli, D., Traub, W., Trauger, J., Tumlinson, J., Turner, E., Vanderbei, B.,Windhorst, R.,Woodgate, B., & Woodruff, B.,. THEIA: Telescope for Habitable Exoplanets and Interstellar/Intergalactic Astronomy. Activity /Mission White Paper submitted in response to the Astro2010 Decadal Survey by the National Research Council of the National Academy of Sciences (2009).
  • Scowen, P.A., Jansen, R.A., Beasley, M., Calzetti, D., Cooke, B., Desch, S., Fullerton, A., Gallagher, J., Malhotra, S., McCaughrean, M., Nikzad, S., O’Connell, R., Oey, S., Padgett, D., Rhoads, J., Roberge, A., Siegmund, O., Smith, N., Stern, D., Tumlinson, J., Windhorst, R., & Woodruff, R. The HORUS Origins Science Probe Mission. Activity /MissionWhite Paper submitted in response to the Astro2010 Decadal Survey by the National Research Council of the National Academy of Sciences (2009).
  • Scowen, P.A., Jansen, R.A., Beasley, M., Calzetti, D., Desch, S., Fullerton, A., Gallagher, J., Lisman, D., Macenka, S., Malhotra, S., McCaughrean, M., Nikzad, S., O’Connell, R., Oey, S., Padgett, D., Rhoads, J., Roberge, A., Siegmund, O., Shaklan, S., Smith, N., Stern, D., Tumlinson, J., Windhorst, R., & Woodruff, R.,. The Star Formation Camera. Activity /Mission White Paper submitted in response to the Astro2010 Decadal Survey by the National Research Council of the National Academy of Sciences (2009).
  • Scowen, P.A., Jansen, R.A., Beasley, M., Calzetti, D., Desch, S., Gallagher, J.,McCaughrean, M., O’Connell, R., Oey, S., Padgett, D., Roberge, A., & Smith, N. Understanding Global Galactic Star Formation. ScienceWhite Paper submitted in response to the Astro2010 Decadal Survey by the National Research Council of the National Academy of Sciences (2009).
  • Scowen, P.A., Jansen, R.A., Beasley, M., Calzetti, D., Fullerton, A., Gallagher, J., McCaughrean, M., O’Connell, R., Oey, S., & Smith, N. The Magellanic Clouds Survey: a Bridge to Nearby Galaxies. ScienceWhite Paper submitted in response to the Astro2010 Decadal Survey by the National Research Council of the National Academy of Sciences (2009).
  • Scowen, P.A., Jansen, R.A., Beasley, M., Desch, S., Fullerton, A., McCaughrean, M., Oey, S., Padgett, D., Roberge, A., & Smith, N.,. From Protostars to Planetary Systems: FUV Spectroscopy of YSOs, Protoplanetary Disks, and Extrasolar Giant Planets. ScienceWhite Paper submitted in response to the Astro2010 Decadal Survey by the National Research Council of the National Academy of Sciences (2009).
  • Straughn, A.N., Pirzkal, N., Meurer, G.R., Cohen, S.H., Windhorst, R.A., Malhotra, S., Rhoads, J.E., Gardner, J.P., Hathi, N.P., Jansen, R.A., Grogin, N.A., Panagia, N., di Serego Alighieri, S., Gronwall, C., Walsh, J., Pasquali, A., & Xu, C. Emission-Line Galaxies from the HST PEARS Grism Survey I: The South Fields. The Astronomical Journal (2009), Vol.138, pp.1022-1031
  • Tamura, K., Jansen, R.A., & Windhorst, R.A. Mapping the Spatial Distribution of Dust Extinction in NGC 0959 using Broadband Visible and Mid-Infrared Filters. The Astronomical Journal (2009), Vol.138, pp.1634-1654
  • Michael R. Corbin, Hwihyun Kim, Rolf A. Jansen, Rogier A. Windhorst, Roberto Cid Fernandes. The Nearby and Extremely Metal-Poor Galaxy CGCG 269-049. The Astrophysical Journal (ApJ) (2008), Vol.675, pp.194-200
  • Nimish P. Hathi, Rolf A. Jansen, Rogier A. Windhorst, Seth H. Cohen, William C. Keel, Michael R. Corbin, Russell E. Ryan Jr. Surface Brightness Profiles of Composite Images of Compact Galaxies at z ~ 4--6 in the Hubble Ultra Deep Field. The Astronomical Journal (AJ) (2008), Vol.135, pp.156-166
  • Paul B. Eskridge, Richard de Grijs, Peter Anders, Rogier A. Windhorst, Violet A. Taylor-Mager, Rolf A. Jansen. Star Clusters in the Nearby Late-type Galaxy NGC 1311. The Astronomical Journal (AJ) (2008), Vol.135, pp.120-129
  • Rogier A. Windhorst, Nimish P. Hathi, Seth H. Cohen, Rolf A. Jansen, Daisuke Kawata, Simon P. Driver, Brad Gibson. High-resolution Science with High-redshift Galaxies. Advances in Space Research (2008).
  • Paul A. Scowen, Rolf A. Jansen, Matthew Beasley, B. Cooke, S. Nikzad, O. Siegmund, R. Woodruff, D. Calzetti, S. Desch, A. Fullerton, J. Gallagher, S. Malhotra, M. McCaughrean, R. O'Connell, S. Oey, D. Padgett, J. Rhoads, A. Roberge, N. Smith, D. Stern, J. Tumlinson, R. Windhorst. The Star Formation Observatory (SFO) mission to study cosmic origins near and far. SPIE (2008).
  • Rogier A. Windhorst, Seth H. Cohen, Nimish P. Hathi, Rolf A. Jansen, Russel E. Ryan Jr. GiGa: the Billion Galaxy H I Survey &ndash; Tracing Galaxy Assembly from Reionization to the Present. AIP Conf. Ser (2008).
  • Rolf A. Jansen. Astronomy Picture of the Day &ndash; NL. (2008).
  • Violet A. Taylor-Mager, Christopher J. Conselice, Rogier A. Windhorst, Rolf A. Jansen. Dependence of Galaxy Structure on Rest-frame Wavelength and Galaxy Type. The Astrophysical Journal (ApJ) (2007).
  • Rolf A. Jansen. Astronomy Picture of the Day &ndash; NL. (2007).
  • Amber Straughn, Seth Cohen, Russel Ryan, Nimish Hathi, Rogier Windhorst, Rolf Jansen. Tracing Galaxy Assembly: Tadpole Galaxies in the Hubble Ultra-Deep Field. The Astrophysical Journal (ApJ) (2006).
  • Windhorst, Rogier, Cohen, Seth, Jansen, Rolf, Conselice, Christopher, Yan, Haojing. How JWST can measure First Light, Reionization and Galaxy Assembly. (2006).
  • Windhorst, Rogier, Cohen, Seth, Jansen, Rolf, Conselice, Christopher, Yan, Haojing. How JWST can measure First Light, Reionization and Galaxy Assembly. New Astronomy Reviews / Elsevier (2006).
  • Windhorst, Rogier, Cohen, Seth, Straughn, Amber, Ryan, Russell, Hathi, Nimish, Jansen, Rolf, Koekemoer, Anton, Pirzkal, Nor, Xu, C, Mobasher, Bahram, Malhotra, Sangeeta, Strolger, Louis-Gregory, Rhoads, James. Did Galaxy Assembly and Supermassive Black-Hole Growth go hand-in-hand?. (2006).
  • Windhorst, Rogier, Cohen, Seth, Straughn, Amber, Ryan, Russell, Hathi, Nimish, Jansen, Rolf, Koekemoer, Anton, Pirzkal, Nor, Xu, C, Mobasher, Bahram, Malhotra, Sangeeta, Strolger, Louis-Gregory, Rhoads, James. Did Galaxy Assembly and Supermassive Black-Hole Growth go hand-in-hand?. New Astronomy Reviews / Elsevier (2006).
  • Rolf A. Jansen. Astronomy Picture of the Day &ndash; NL. (2006).
  • Lisa Kewley, Rolf Jansen, Margaret Geller. Aperture Effects on Star Formation Rate, Metallicity and Reddening. Publications of the Astronomical Society of the Pacific (PASP) (2005).
  • Violet Taylor, Rolf Jansen, Rogier Windhorst, Stephen Odewahn, John Hibbard. UBVR and HST mid-UV and near-IR surface photometry and radial color gradients of late-type, irregular, and peculiar galaxies. The Astrophysical Journal (ApJ) (2005).
  • Kewley, Lisa, Geller, Margaret, Jansen, Rolf. Emission Line Diagnostics of Star Formation: Nearby and at High Redshift. AIP Conference Proceedings (2005).
  • Rolf A. Jansen. Astronomy Picture of the Day &ndash; NL. (2005).
  • Lisa Kewley, Margaret Geller, Rolf Jansen. [O II] as a Star Formation Rate Indicator. The Astronomical Journal (AJ) (2004).
  • Sheila Kannappan, Rolf Jansen, Elizabeth Barton. Forming Young Bulges within Existing Disks: Statistical Evidence for External Drivers. The Astronomical Journal (AJ) (2004).
  • Violet Taylor, Rolf Jansen, Rogier Windhorst. Observing Conditions at Mt.Graham: VATT UBVR sky surface brightness and seeing measurements from 1999 through 2003. Publications of the Astronomical Society of the Pacific (PASP) (2004).
  • Jansen, Rolf. An HST ACS/WFC H-alpha Imaging Survey of Nearby Galaxies. ``Penetrating Bars through Masks of Cosmic Dust'' / Springer: Dordrecht (2004).
  • Windhorst, Rogier, Jansen, Rolf, Jansen, Rolf. HST Mid-UV Imaging of Nearby Galaxies. ``Penetrating Bars through Masks of Cosmic Dust" / Springer: Dordrecht (2004).
  • K Stanek, K Krisciunas, M Calkins, J Lee, N Hathi, Rolf Jansen, R Windhorst, L Echevarria, D Eisenstein, B Pindor, E Olszewski, T Matheson, P Harding, S Holland, D Bersier, P Garnevich, P Martini, P Berlind, N Caldwell, P Challis, W Brown, R Schild. Spectroscopic Discovery of the Supernova 2003dh Associated with GRB 030329. The Astrophysical Journal, Letters (ApJ) (2003).
  • Peter Jakobsen, Rolf Jansen, Stephan Wagner, Dieter Reimers. Caught in the Act: A helium-reionizing Quasar near the Line of Sight to Q0302-003. Astronomy and Astrophysics (A&A) (2003).
  • T Matheson, M Bolte, A Bonanos, M Brown, W Brown, M Calkins, P Challis, R Chornock, L Echevarria, D Eisenstein, M Everett, P Garnavich, A Filippenko, K Flint, R Foley, D Freedman, M Hamuy, P Harding, N Hathi, M Hicken, C Hoopes, C Impey, K Stanek, B Jannuzi, Rolf Jansen, S Jha, J Kaluzny, S Kannappan, R Kirshner, D Latham, J Lee, D Leonard, W Li, D Bersier, K Luhman, P Martini, H Mathis, J Maza, S Megeath, L Miller, D Minniti, E Olszewski, M Papenkova, M Phillips, S Holland, B Pindor, D Sasselov, R Schild, H Schweiker, T Spahr, J Thomas-Osip, I Thompson, D Weisz, R Windhorst, D Zaritsky, K Krisciunas, N Caldwell, P Berlind, J Bloom. Photometry and Spectroscopy of GRB 030329 and Its Associated Supernova 2003dh: The First Two Months. The Astrophysical Journal (ApJ) (2003).
  • Jansen, Rolf, Collins, Nicholas, Windhorst, Rogier. Autofilet.pro: An Improved Method for Automated Removal of Herring-bone Pattern-Noise from CCD Data. Space Telescope Science Institute (2003).
  • Kewley, L, Geller, M, Jansen, Rolf, Dopita, M. H&alpha; and Infrared Star Formation Rates for the Nearby Field Galaxy Survey. The Astrophysics of Dust (2003).
  • Kewley, Lisa, Geller, Margaret, Jansen, Rolf. Star Formation and Dust in the Nearby Field Galaxy Survey. (2003).
  • Lisa Kewley, Margaret Geller, Rolf Jansen, Michael Dopita. The H-alpha and Infrared Star Formation Rates for the Nearby Field Galaxy Survey. The Astronomical Journal (AJ) (2002).
  • Rogier Windhorst, John MacKenty, Paul Eskridge, Jay Frogel, John Gallagher, John Hibbard, Lynn Matthews, Robert O'Connell, Violet Taylor, Rolf Jansen, Stephen Odewahn, Claudia Chiarenza, Christopher Conselice, de Grijs, de Richard, S Roelof. A Hubble Space Telescope Survey of the Mid-Ultraviolet Morphology of Nearby Galaxies. The Astrophysical Journal Supplement Series (ApJS) (2002).
  • Rolf Jansen, M Franx, D Fabricant. [O ii] as a Tracer of Current Star Formation. Astrophysics Journal (2001).
  • Rolf Jansen, P Jakobsen. The late-time expansion of the ejecta of SN 1987A. A&A (2001).
  • Rolf Jansen, S Kannappan. The Nearby Field Galaxy Survey: A Spectrophotometric and Photometric Study of Nearby Galaxies. AP&SS (2001).
Research Activity: 
  • Windhorst, Rogier A., Arendt, R.G., Casertano, S., Cohen, S.H., Driver, S.P., Dwek, E., Grogin, N.A., Jansen, R.A., Kashlinsky, A., Kenyon, S.J., Koekemoer, A.M., MacKenty, J.W., Pirzkal, N., Robotham, A., & Ryan, R.E. Jr. SKY-SURF: Panchromatic constraints on the Extragalactic Background Light and Zodiacal Light sources through all-sky foreground measurements. SPACE TELESCOPE SCIENCE INST (1/1/2020--12/31/2022)
  • Teplitz, H.I., Alavi, A., Ashcraft, T., Bagley, M., Baronchelli, I., Barro, G., Codoreanu, A.G., Colbert, J., Conselice, C.J., Dai, Y.S., Darvish, B., Dave', R., de Mello, D.F., Dickinson, M., Ferguson, H.C., Finkelstein, K., Finkelstein, S.L., Gardner, J.P., Gawiser, E., Giavalisco, M., Grazian, A., Grogin, N., Gronwall, C., Guo, Y., Hathi, N.P., Hayes, M.J., Howell, J.H., Jansen, R.A., Kaviraj, S., Koekemoer, A.M., Lucas, R., MacKenty, J.W., Mehta, V., Mobasher, B., O'Connell, R.W., Rafelski, M., Ravindranath, S., Robertson, B., Rutkowski, M.J., Scarlata, C., Siana, B., Smith, B., Soto, E., Vanzella, E., & Windhorst, R.A. Ultraviolet Imaging of the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey Fields (UVCANDELS). SPACE TELESCOPE SCIENCE INST (1/1/2019--12/31/2022)
  • Jansen,Rolf A*, Windhorst,Rogier A. Ashcraft, T., Brisken, W., Cohen, S., Conselice, C., Driver, S., Finkelstein, S., Frye, B., Grogin, N., Hathi, N., Kim, D., Koekemoer, A., Maksym, W., Riess, A., Rodney, S., Ryan, R., Smith, B., Strolger, L., & Willmer, C. UV--Visible Imaging of the JWST NEP Time-Domain Field: the *best* extragalactic survey field *always* accessible to JWST. SPACE TELESCOPE SCIENCE INST (1/1/2018--12/31/2020)
  • Rhoads,James Ely, Malhotra, S., Windhorst,Rogier A., Jansen,Rolf A., Sheth Tilvi, V., Fan, X., Finkelstein, S., Jensen, H., Mellema, G., Papovich, C., Wold, I., Zackrisson, E.  'Studying Cosmic Dawn with WFIRST': WFIRST Science Investigation Teams and Adjutant Scientists. NASA-HQ SMD-Astrophysics (12/01/2015 - 11/30/2020)
  • Windhorst,Rogier A.*, Cohen, S.H., Jansen,Rolf A., Rutkowski, M.J., Ryan, R.E. Jr., Yan, H-J., Conselice, C., Driver, S.P., Hathi, N.P., Hopkins, A., Konstantopoulos, I., Khochfar, S., Mechtley, M.R., Wyithe, J.S.B. Galaxy Assembly, Supermassive Black Hole Growth, First Light and Reionization Studies with the James Webb Space Telescope: Interdisciplinary Scientist for JWST. NASA-GODDARD SPACE FLIGHT CTR (9/16/2014 - 9/15/2019)
  • Jansen,Rolf A*, Windhorst,Rogier A. Magellanic Clues to Spatially-resolved Extinction Corrections for Distant Galaxies in the HSTJWST Era. NASA-GODDARD SPACE FLIGHT CTR(4/1/2012 - 3/31/2016).
  • Scowen,Paul Andrew*, Desch,Steven, Jansen,Rolf A, Rhoads,James Ely, Windhorst,Rogier A. The Star Formation Observatory (SFO) Mission to Study Cosmic Origins Near and Far. NASA-GODDARD SPACE FLIGHT CTR(3/28/2008 - 3/27/2010).
  • Jansen,Rolf A*. Cycle 16 AR-11258 "Removing the herring-bone pattern noise from *all* STIS Side-2 CCD data: a factor ~3 enhancement in sensitivitity.". SPACE TELESCOPE SCIENCE INST(8/1/2007 - 7/31/2011).
  • Jansen,Rolf A*. Deep Imaging of Extremely Metal-Poor Galaxies. SPACE TELESCOPE SCIENCE INST(1/1/2007 - 1/31/2008).
  • Morse,Jon A*, Beasley,Matthew Nelson, Desch,Steven, Hester,John Jeffrey, Jansen,Rolf A, Scowen,Paul Andrew, Windhorst,Rogier A. HORUS: High Orbit Ultraviolet-Visible Satellite. NASA-GODDARD SPACE FLIGHT CTR(9/15/2004 - 9/14/2005).
  • Windhorst,Rogier A.*, Jansen,Rolf A., Odewahn, S.C., Waddington, I., Yan, H-J., Conselice, C., Driver, S., Next Generation Frontier Studies of Galaxy Formation and Evolution with NGST: Building on and Learning from the HST Heritage, and Pushing the New Frontiers. NASA-GODDARD SPACE FLIGHT CTR(9/15/2002 - 9/14/2014)
Teaching Website URL: 
http://www.public.asu.edu/~rjansen/ast598/
Spring 2021
Course NumberCourse Title
AST 494Special Topics
Fall 2020
Course NumberCourse Title
AST 494Special Topics
AST 499Individualized Instruction
Spring 2020
Course NumberCourse Title
AST 494Special Topics
Fall 2019
Course NumberCourse Title
AST 494Special Topics
AST 499Individualized Instruction
Spring 2019
Course NumberCourse Title
AST 493Honors Thesis
AST 494Special Topics
Fall 2018
Course NumberCourse Title
AST 492Honors Directed Study
AST 499Individualized Instruction
Presentations: 

 

  1. Teaching
  1. Presentations
  • Jansen, R.A., Windhorst, R.A., Grogin, N.A., Royle, P., Koekemoer, A.M., Hathi, N.P., Jones, V.R., Cohen, S.H., Ashcraft, T.A., Willmer, C.N.A., Conselice, C.J., White, C.W., & Frye, B.L. UV--Visible observations with HST in the JWST North Ecliptic Pole Time-Domain Field. #354.14. 231th AAS Meeting, Washington D.C. (Jan 11 2018)
  • Scolnic, D., Casertano, S., Deustua, S., Hirata, C., Hounsell, R., Jansen, R., Kruk, J., Rubin, D., and the WFIRST WFI Calibration Group. WFIRST WFI Calibration Requirements and Plan. #355.45. 231th AAS Meeting, Washington D.C. (Jan 11, 2018)
  • Rhoads, J.E., Malhotra, S., Jansen, R.A., Windhorst, R., Tilvi, V., Finkelstein, S., Wold, I., Papovich, C., Fan, X., Mellema, G., Zackrisson, E., & Jensen, H. Studying Cosmic Dawn with WFIRST. #258.17. 231th AAS Meeting, Washington D.C., (Jan 10 2018)
  • Jansen, R.A., Windhorst, R.A., Alpaslan, M., Ashby, M., Ashcraft, T., Cohen, S.H., Condon, J.J., Conselice, C., Ferrara, A., Frye, B.L., Grogin, N.A., Hammel, H.B., Hathi, N.P., Joshi, B.A., Kim, D., Koekemoer, A.M., Mechtley, M., Milam, S.N., Rodney, S.A., Rutkowski, M.J., Strolger, L-G., Trujillo, C.A., Willmer, C.N.A., & Yan, H. The JWST North Ecliptic Pole Survey Field for Time-Domain Studies. #216.02. 230th AAS Meeting, Austin TX (Jun 6 2017)
  • Jansen, R.A., Alpaslan, M., Ashby, M., Ashcraft, T., Cohen, S.H., Condon, J.J., Conselice, C., Ferrara, A., Frye, B.L., Grogin, N.A., Hammel, H.B., Hathi, N.P., Joshi, B.A., Kim, D., Koekemoer, A.M., Mechtley, M., Milam, S.N., Rodney, S.A., Rutkowski, M.J., Strolger, L-G., Trujillo, C.A., Willmer, C.N.A., Windhorst, R.A., & Yan, H. The JWST North Ecliptic Pole Survey Field for Time-Domain Studies. #438.04. 229th AAS Meeting, Grapevine TX (Jan 7 2017)
  • Ashcraft, T.A., Windhorst, R.A., Jansen, R.A., Cohen, S.H., Grazian, A., Boutsia, K., Fontana, A., Giallongo, E., O'Connell, R.W., Paris, D., Rutkowski, M.J., Scarlata, C., & Testa, V. Ultra-deep Large Binocular Camera U-band Imaging of the GOODS-North Field: Depth vs. Resolution. #438.06. 229th AAS Meeting Grapevine TX (Jan 7 2017)
  • Kim, D., Jansen, R.A., & Windhorst, R.A. Predicting Intrinsic Mid-IR to Visible--Near-IR Flux Ratios for Galaxies of Different Types using Spectral Synthesis Models of Composite Stellar Populations. #342.24. 227th AAS Meeting, Kissimmee FL (Jan 7 2016)
  • Jansen, R.A., Kim, D., Shewcraft, T., Windhorst, R.A., & Tamura, K. Magellanic Clues to Spatially-resolved Extinction Corrections for Distant Galaxies in the HST/JWST Era. #143.13. 225th AAS Meeting, Seattle WA (Jan 5 2015)
  • Kim, D., Jansen, R.A., & Windhorst, R.A. Analysis of the Intrinsic \beta_{\lambda,0} Ratio using Spectral Synthesis Models of Composite Stellar Populations. #143.14. 225th AAS Meeting, Seattle WA (Jan 5 2015)
  • Smith, B.M., Windhorst, R.A., Jansen, R.A., Cohen, S.H., Jiang, L., Dijkstra, M., Koekemoer, A.M., Bielby, R., MacKenty, J.W., O'Connell, R.W., & Silk, J.I. HST/WFC3 Observations of Escaping Lyman Continuum Radiation from Galaxies and Weak AGN at Redshifts z ~ 2.3--6. #255.16. 225th AAS Meeting, Seattle WA (Jan 6 2015)
  • Jansen, R.A., Magellanic Clues to spatially resolved extinction corrections in the HST/JWST era. JWST GTO SWG meeting in Baltimore MD (Aug 7 2014)
  • Ashcraft, T.A., Hegel, P., Jansen, R.A., Rutkowski, M.J., & Windhorst, R.A.  A Search for z~1.2 Ly-alpha Blobs. #432.01. 223th AAS Meeting, Washington D.C. (Jan 9 2014)
  • Jansen, R.A., Kim, D., Shewcraft, T., Windhorst, R.A., & Tamura, K. Magellanic Clues to Spatially-resolved Extinction Corrections for Distant Galaxies in the HST/JWST Era. #246.20. 223th AAS Meeting, Washington D.C. (Jan 7 2014)
  • Windhorst. R.A., Cohen, S.H., Jansen, R.A., Driver, S.P., Robotham, A., Alpaslan, M., Lange, R., Hopkins, A.M., Cluver, M., Konstantopoulos, I., Wyithe, J.S.B., Barone-Nugent, R.L., & Carrasco-Nunez, D. Strategies to observe JWST First Light objects at z=10--20 based on recent results from the HUDF XDF. #246.62. 223th AAS Meeting, Washington D.C. (Jan 8 2014)
  • Hegel, P., Jansen, R.A., & Windhorst, R.A.  A Search for z~0.5--1.1 Ly-alpha Blobs. #147.19. 221th AAS Meeting, Long Beach CA (Jan 7 2013)
  • Mechtley, M., Smith, B.M., Windhorst, R.A., Cohen, S.H., Jansen, R.A., Jiang, L., Scannapieco, E., Koekemoer, A.M., Ryan, R.E., Jahnke, K., Fan, X., Schneider, G., Hathi, N.P., Keel, W.C., Rottgering, H., Schneider, D.P., Strauss, M.A., & Yan, H.  Quasar Host Galaxies at z=2 and z=6; Point Source Subtraction with MCMC. #339.31. 221th AAS Meeting, Long Beach CA (Jan 9 2013)
  • Jansen, R.A.  Removing the Pattern Noise from all HST/STIS Side-2 CCD Data. #344.11. 221th AAS Meeting, Long Beach CA (Jan 9 2013)
  • Scowen, P.A.,  and the HORUS Science Definition Team (incl. R.A. Jansen). The HORUS Observatory -- A Next Generation 2.4m UV--Optical Mission to Study Planetary, Stellar and Galactic Formation. #439.04. 221th AAS Meeting, Long Beach CA (Jan 9 2013)
  • Scowen, P.A., Beasley, M., Cooke, B., Woodruff, B., Calzetti, D., Desch, S., Fullerton, A., Gallagher, J., Hartigan, P., Jansen, R., Malhotra, S., Nikzad, S., O'Connell, R.W., Oey, S., Padgett, D., Rhoads, J., Roberge, A., Siegmund, O., Smith, N., Tumlinson, J., & Windhorst, R.  The HORUS Observatory -- A Next Generation 2.4m UV--Optical Mission to Study Planetary, Stellar and Galactic Formation. ('UV Astronomy: HST and Beyond' meeting, Kauai HI, Jun 18--21 2012)
  • Mechtley, M., Windhorst, R.A., Ryan, R.E., Cohen, S.H., Schneider, G., Fan, X., Hathi, N.P., Jansen, R.A., Keel, W.C., Koekemoer, A.M., Rottgering, H., Scannapieco, E., Schneider, D.P., Strauss, M.A., & Yan, H. WFC3 Imaging of z=6 Quasars: Examining the Host Galaxies of AGN in the Early Universe. #243.17. 219th AAS Meeting, Austin TX (Jan 10 2012)
  • Tamura, K., Kim, H., Rutkowski, M., Benton, M., Moffet, S., Regan, B., Jansen, R.A., & Windhorst, R.A.  Properties of Seyfert2 Galaxies: Various Classification Parameters. #142.59. 217th AAS Meeting, Seattle WA (Jan 10 2011)
  • Jansen, R.A., Windhorst, R., Kim, H., Hathi, N., Goudfrooij, P., & Collins, N.  Removing the Pattern Noise from all STIS Side-2 CCD Data. #S4. The `2010 STScI Calibration Workshop', Baltimore MD (Jul 21--23 2010)
  • Spergel, D.N., and the THEIA Collaboration (incl. R.A. Jansen). THEIA: Telescope for Habitable Exoplanets and Interstellar/Intergalactic Astronomy. #421.27.  215th AAS Meeting, Washington D.C. (Jan 7 2010)
  • Scowen, P.A., Beasley, M., Cooke, B., Woodruff, B., Calzetti, D., Desch, S., Fullerton, A., Gallagher, J., Hartigan, P., Jansen, R.A., Lauer, T., O'Connell, R.W., Oey, S., Padgett, D., Roberge, A., Siegmund, O., Smith, N., Stern, D., Tumlinson, J., & Windhorst, R.  The HORUS Observatory -- a Next Generation MIssion to Study Planetary, Stellar and Galactic Formation. #481.06.  215th AAS Meeting, Washington D.C. (Jan 7 2010)
  • Tamura, K., Jansen, R.A., Eskridge, P.B., Cohen, S.H., & Windhorst, R.A.  Revealing the Stellar Populations Underlying the Dust in NGC 959.  #432.15.  215th AAS Meeting, Washington D.C. (Jan 5 2010)
  • Jansen, R.A., Scowen, P.A., Beasley, M., Calzetti, D., Desch, S., Fullerton, A., Gallagher, J., Malhotra, S., McCaughrean, M., Nikzad, S., O'Connell, R., Oey, S., Padgett, D., Rhoads, J., Roberge, A., Siegmund, O., Smith, N., Stern, D., Tumlinson, J., Windhorst, R., Woodruff, R., Sembach, K., & Spergel, D.  From Cosmic Dawn to Our Solar System: A Next-Generation UV--Optical Space Facility for the Study of Star Formation. 'Beyond JWST: The Next Steps in UV--Optical--NIR Astronomy' workshop at STScI, Baltimore MD (Mar 26-27 2009).
  • Jansen, R.A., Scowen, P.A., Beasley, M., Calzetti, D., Desch, S., Fullerton, A., Gallagher, J., Malhotra, S., McCaughrean, M., Nikzad, S., O'Connell, R., Oey, S., Padgett, D., Rhoads, J., Roberge, A., Siegmund, O., Smith, N., Stern, D., Tumlinson, J., Windhorst, R., Woodruff, R., Sembach, K., & Spergel, D.  Design Reference Science Program for the Star Formation Camera aboard the THEIA Space Telescope. 213th AAS Meeting, Long Beach, CA (Jan 2009).
  • Scowen, P.A., Jansen, R.A., Beasley, M., et al. Design and Implementation of the Widefield High-Resolution UV/Optical Star Formation Camera for the THEIA Mission. 213th AAS Meeting, Long Beach, CA (Jan 2009).
  • Rolf A. Jansen, Paul A. Scowen, Matthew Beasley, and the SFO Science Team. From Cosmic Dawn to Our Solar System: A Next-Generation UV&ndash;Optical Space Facility for the Study of Star Formation. JENAM2008 conference, Vienna (Austria), Sep 8--12 (Sep 2008).
  • Rogier A. Windhorst, Rolf A. Jansen, Seth H. Cohen, Matt Mechtley, Nimish Hathi, Russel Ryan Jr., Haojing Yan, Chris Concelice. Technical Aspects of How the James Webb Space Telescope Can Measure First Light, Reionization, and Galaxy Assembly. 211th Meeting of the American Astronomical Society, Austin TX, Jan 7--11 (Jan 2008).
  • Hwihyun Kim, Rolf A. Jansen, Michael R. Corbin, Rogier A. Windhorst, Roberto Cid Fernandes. PSF Photometry of HST ACS/HRC Images of CGCG 269-049. 211th Meeting of the American Astronomical Society, Austin TX, Jan 7--11 (Jan 2008).
  • Kazuyuki Tamura, Rogier A. Windhorst, Rolf A. Jansen. Multi-Color Pixel-Based Analysis of Nearby Galaxies. 211th Meeting of the American Astronomical Society, Austin TX, Jan 7--11 (Jan 2008).
  • Nimish P. Hathi, Rolf A. Jansen, Seth H. Cohen, Rogier A. Windhorst, Sangeeta Malhotra, James E. Rhoads. Surface Brightness Properties of z ~ 4&ndash;6 Objects in the HUDF. 209th Meeting of the American Astronomical Society, Seattle WA, Jan 6&ndash;10 (Jan 2007).
  • Russel E. Ryan Jr., Rolf A. Jansen, Seth H. Cohen, Rogier A. Windhorst. The Unresolved Stellar Populations of Galaxies in the HUDF. 209th Meeting of the American Astronomical Society, Seattle WA, Jan 6&ndash;10 (Jan 2007).
  • Rogier A. Windhorst, Rolf A. Jansen, Seth H. Cohen, Matt Mechtley, Haojing Yan, Chris J. Concelice. How can the James Webb Space Telescope measure First Light, Reionization, and Galaxy Assembly?. 209th Meeting of the American Astronomical Society, Seattle WA, Jan 6&ndash;10 (Jan 2007).
  • Corbin, M, Jansen, Rolf, Burstein, D. HST and Spitzer Observations of Extremely Metal-Poor Galaxies. Workshop on "Making the Most of the Great Observatories", Pasadena CA, May 22--24 (May 2006).
  • Scowen, P, Morse, J, Beasley, M, Veach, T, Jansen, Rolf. ORION: Hierarchical Space-based Observations of Star Formation, From Near to Far. 207th Meeting of the American Astronomical Society, Washington DC, Jan 8--12 (Jan 2006).
  • Straughn, A, Cohen, S, Ryan, R, Hathi, N, Windhorst, R, Jansen, Rolf. Tadpole Galaxies: Clues to Galaxy Assembly. 207th Meeting of the American Astronomical Society, Washington DC, Jan 8--12 (Jan 2006).
  • Windhorst, R, Jansen, Rolf, Cohen, S, Yan, H, Conselice, C. How can the James Webb Space Telescope measure First Light, Reionization, and Galaxy Assembly?. 207th Meeting of the American Astronomical Society, Washington DC, Jan 8--12 (Jan 2006).
  • Scowen, P, Morse, J, Beasley, M, Hester, J, Windhorst, R, Desch, S, Jansen, Rolf, Calzetti, D, Padgett, D, Hartigan, P, Oey, S, Bally, J, Gallagher, J, O'Connell, R, Kennicutt, R, Lauer, T, McCaughrean, M. A Systematic Survey of Star Formation with the ORION MIDEX Mission. 205th Meeting of the American Astronomical Society (Jan 2005).
  • Jansen, Rolf. An HST ACS/WFC H-alpha Imaging Survey of Nearby Galaxies. October Astrophysics Conference "New Windows on Star Formation in the Cosmos" (Oct 2004).
  • Jansen, Rolf. HST ACS/WFC H-alpha Imaging of Nearby Late-type Galaxies. October Astrophysics Conference "New Windows on Star Formation in the Cosmos", College Park MD, Oct (Oct 2004).
  • Jansen, Rolf. An HST ACS/WFC H-alpha Imaging Survey of Nearby Galaxies. Conference on "Penetrating Bars Through Masks of Cosmic Dust" (Jun 2004).
  • Scowen, P, Morse, J, Beasley, M, Hester, J, Windhorst, R, Desch, S, Jansen, Rolf, Calzetti, D, Padgett, D, Hartigan, P, Oey, S, Bally, J, Gallagher, J, O'Connell, R, Kennicutt, R, Lauer, T. A Systematic Survey of Star Formation with the ORION MIDEX Mission. 204th Meeting of the American Astronomical Society (May 2004).
  • Scowen, P, Morse, J, Beasley, M, Hester, J, Windhorst, R, Desch, S, Jansen, Rolf, Calzetti, D, Padgett, D, Hartigan, P, Oey, S, Bally, J, Gallagher, J, O'Connell, R, Kennicutt, R, Lauer, T, Bechtold, J, Tumlinson, J, McGrath, M, Roberge, A, Johns-Krull, C, Stern, D, Siegmund, O, Woodruff, R. The HORUS Origins Science Mission: A Comprehensive Study of Planetary, Star and Galaxy Formation. 204th Meeting of the American Astronomical Society, Denver CO, May 30--Jun 3 (May 2004).
  • Kewley, L, Geller, M, Jansen, Rolf. [O II] as a SFR indicator and the Cosmic Star Formation History. 203rd Meeting of the American Astronomical Society (Jan 2004).
  • Kewley, L, Geller, M, Jansen, Rolf, Dopita, M. Star Formation and Dust in the Nearby Field Galaxy Survey. Conference on the Astrophysics of Dust, Estes Park CO, May 26--30 (May 2003).
  • Windhorst, R, Cohen, S, Jansen, Rolf, Odewahn, S, Driver, S, Kawata, D, Gibson, B, Hopkins, A. Fundamental Limitations to the Observabillity of Outskirts of (Dwarf) Galaxies at High Redshifts: the Natural Confusion Limit in Ultra-Deep Optical-IR and Radio Surveys. Lowell Observatory workshop "The Outer Edges of Dwarf Irregular Galaxies", Flagstaff AZ, Oct 10-11 (Oct 2002).
  • Jansen, Rolf, Collins, N, Windhorst, R. Autofilet.pro: An Improved Method for Automated Removal of Herring-bone Pattern-Noise from CCD Data. The 2002 HST Calibration Workshop, STScI (Oct 2002).
  • Odewahn, S, Jansen, Rolf, Windhorst, R, Taylor, V, Eskridge, P. HST/WFPC2 Analysis of the Mid-UV--Optical Colors within the Disks of Nearby Galaxies. Lowell Observatory workshop "The Outer Edges of Dwarf Irregular Galaxies", Flagstaff AZ, Oct 10-11 (Oct 2002).
  • Taylor, V, Odewahn, S, Jansen, Rolf, Windhorst, R. UV--Optical Light Profiles and Color Gradients of Late-type, Irregular, and Peculiar Galaxies. Lowell Observatory workshop "The Outer Edges of Dwarf Irregular Galaxies", Flagstaff AZ, Oct 10-11 (Oct 2002).
  • Windhorst, R, Cohen, S, Jansen, Rolf, Odewahn, S, Driver, S, Hopkins, A. The expected natural confusion limit for the Next Generation Space Telescope and for the Square Kilometer Array. 36th Meeting of the Astronomical Society of Australia, Harvey Woods NSW, Australia, July (Jul 2002).
  • Morse, J, Scowen, P, Hester, J, Beasley, M, Lauer, T, Jansen, Rolf. Dark Energy, High-redshift Galaxies, and Star Formation with ORION: HST-SM5 Wide Field Camera. 203rd Meeting of the American Astronomical Society, Atlanta GA, Jan 4--8
  • Scowen, P, Morse, J, Beasley, M, Hester, J, Windhorst, R, Jansen, Rolf, Lauer, T, Danielson, E, Sepulveda, C, Olarte, G, ORION MIDEX Science Team, the. Space-based Observations of Star Formation using ORION: The MIDEX. 203rd Meeting of the American Astronomical Society, Athlanta GA, Jan 4--8
  • Taylor, V, Odewahn, S, Jansen, Rolf, Windhorst, R, Hibbard, J. Discovering Clues to Galaxy Evolution in the Radial Color Gradients of Late-type Spiral and Irregular Galaxies. 203rd Meeting of the American Astronomical Society, Atlanta GA, Jan 4--8
  • Corbin, M, Vacca, W, Hibbard, J, Somerville, R, Jansen, Rolf, Windhorst, R, Scowen, P. Hubble Space Telescope Imaging of the Extremely Metal-Poor Galaxy SDSS J0133+1342. 205th Meeting of the American Astronomical Society, San Diego CA, Jan 10-14
  • Eskridge, P, Monson, A, Jansen, Rolf, Taylor, V, Windhorst, R, de Grijs, R. Resolved Stars and Unresolved Light in NGC 1311. 205th Meeting of the American Astronomical Society, San Diego CA, Jan 10--14

Windhorst, R, Cohen, S, Jansen, Rolf, Odewahn, S, Driver, S, Kawata, D, Gibson, B, Gardner, J, Hopkins, A. Object Sizes from Reionization to the Present, and the Natural Confusion Limit Expected in Ultradeep Surveys. 201st Meeting of the American Astronomical Society, Seattle WA, Jan 5--9

Honors / Awards: 
  • Smithsonian Pre-doctoral Fellowship at the Harvard-Smithsonian Center for Astrophysics, Cambridge MA, twice, for a 7 month period each (1995--1996; 1998)
Professional Associations: 

* American Astronomical Society -- Full Member * International Astronomical Union -- Member * Dutch Astronomical Society (Nederlandse Astronomen Club) * Society for Science and the Public -- Member

Graduate Faculties / Mentoring History: 

* Served as Thesis-, Co-, Secondary-, or Research Advisor for a total of 24 graduate and 19 undergraduate students.

Service: 
  1. Outreach:
  • Astronomy Picture of the Day -- NL, Scientific translator and web-master (2005--present); http://www.apod.nl
  • Valley Engineering, Science, and Technology club (VEST): guest lecture (2018)
  • Young Presidents Organization (Arizona Chapter) book club event: served as Expert Resource/Facilitator (2015)
  • Saguaro Astronomy Club, Phoenix AZ; Invited Speaker (2014)
  • Served as Grand Awards Judge for the 2014 Intel/International Science and Engineering Fair (ISEF) in Los Angeles, CA
  • GuideStar Magazine, monthly APOD rubric (2013--2015[till the magazine's final issue of Dec 2015]); http://www.spacepage.be/guidestar/
  • Served as Grand Awards Judge for the 2013 Intel/ISEF fair in Phoenix, AZ
  • Challenger Space Center of Arizona, Peoria AZ; two guest lectures (2011)
  • East Valley Astronomy Club, Gilbert AZ; guest lecture (2011)
  • East Valley Astronomy Club, Gilbert AZ; guest lecture (2010)
  • West Valley Astronomy Club, Surprise AZ; guest lecture (2009)
  • East Valley Astronomy Club, Gilbert AZ; guest lecture (2007)
  • Served as Grand Awards Judge for the 2005 Intel International Science and Engineering Fair (ISEF), Phoenix AZ
  1. Professional Service:
  • Served as reviewer for NSF (2015, 2016)
  • Served as external reviewer for the NASA Postdoctoral Program (2011, 2012)
  • Maricopa County Association of Governments (MAG) 'Dark Sky Stakeholders Group' / member (2009--2011); http://www.public.asu.edu/~rjansen/darksky/mag_polc+guide110908.pdf
  • Phoenix Board of Adjustment, Local professional astronomer / expert (2008)
  • The Astronomical Journal, Referee (2004 - present)
  • Monthly Notices of the Royal Astronomical Society, Referee (2004 - present)
  • Doctoral Supervisory Committe for the Physics Degree Program at ASU, Chair / Member (2005 - present)
  • Doctoral Supervisory Committe for the Physics Degree Program at ASU, Member (2005 - present)
  • Masters Thesis Committe for the Physics Degree Program at ASU, Member (2005 - present)
  • Cosmology Group within the School of Earth and Space Exploration, Web-master (2005 - 2008)
  • Steward Observatory Telescopes Time Allocation Committee, Member; representing ASU astronomers (2005 - 2008)
  • SESE Computing Advisory Committee, Member (2006 - 2007)
  • Academic Professional Peer Review Committee, Member (2004 - 2007)
  • Cosmology Group within the School of Earth and Space Exploration, Computer Set-up, Maintenance, and Support (2001 - 2007)
  • Undergraduate curriculum project of the Conceptual Astronomy and Physics Education Research (CAPER) team at University of Arizona, Consultant (2005)
  • Publications of the Astronomical Society of the Pacific, Referee (2004)
  • Science, Referee (2002)
Expertise Areas: 
Astronomy
Astrophysics
Cosmology