Skip Navigation

Daniel Stern

Photo of Daniel Stern


4800 Oak Grove Drive
M/S 169-224

Pasadena, CA 91109





Curriculum Vitae:

Click here

Member of:

Structure of the Universe

NuSTAR Project Scientist


  • A.B., Physics (cum laude) - Princeton University (1991)
  • M.A., Astronomy - University of California, Berkeley (1994)
  • Ph.D., Astrophysics - University of California, Berkeley (1999)

Professional Experience

  • NASA, Jet Propulsion Laboratory (1999-Present)
    • Deputy PI, NASA-Funded Euclid Science Team (2015-Present)
    • Project Scientist, NuSTAR (2007-Present)
    • Research Scientist, (2001-Present)
    • Caltech Postdoctoral Scholar, working with Peter Eisenhardt (1999-2001)
  • Graduate Researcher with Hyron Spinrad; Research implementing optical and infrared imaging and spectroscopy (Lick Observatory, Keck Observatory, HST, IRTF), emphasizing observational cosmology and the distant Universe (1993-1999)
  • Graduate Researcher with Joe Silk; Theoretical Cosmology Research Considering Microwave Background Fluctuations In A Topologically Closed Universe (1992-1993)

Research Interests

  • Observational cosmology; identifying and studying galaxies and galaxy clusters at high redshift
  • Active galaxies; understanding the cosmic history of black hole formation and activity

Selected Awards

  • NASA Exceptional Scientific Achievement Medal (2014)
  • NASA Group Achievement Award to the NuSTAR Science Team (2014)
  • NASA Exceptional Achievement Medal (2013)
  • Edward Stone Award for Outstanding Research Publication (2013)
  • Muhlmann Award from the Astronomical Society of the Pacific to the Spitzer Space Telescope Team (2010)
  • Lew Allen Award for Excellence in Research (2005)
  • IGPP Graduate Fellowship, University of California, Berkeley (1997-1999)
  • DAAD scholar in Munich, Germany (1991-1992)

Selected Publications

Over 600 Refereed Publications - First author publications include:

  1. Stern, D. & Walton, D.J., "A Redshift for the First Einstein Ring, MG 1131+0456," ApJL, 895,2 (2020)
  2. Stern, D. et al., "A Mid-IR Selected Changing-Look Quasar and Physical Scenarios for Abrupt AGN Fading,"ApJ, 864, 27 (2018)
  3. Stern, D., . et al., "Extreme Variability in a Broad Absorption Line Quasar," ApJ, 839, 2 (2017)
  4. Stern, D., "The X-Ray to Mid-Infrared Relation of AGN at High Luminosity," ApJ, 807, 129 (2015)
  5. Stern, D. et al., "NuSTAR and XMM-Newton Observations of Luminous, Heavily Obscured WISE-Selected Quasars at z~2," ApJ, 794, 102. (2014)
  6. Stern, D. and Assef, R.J., "Revisiting the Gamma-Ray Source 2FGL J1823.8+4312", ApJL, 764, L30. (2013)
  7. Stern, D., et al., "Mid-Infrared Selection of AGN with WISE", ApJ, 753, 30 (2012)
  8. Stern, D., Jimenez, R., Verde, L., Kamionkowski, M., and Stanford, S.A., "Cosmic Chronometers: Constraining the Equation of State of Dark Energy. I: H(z) Measurements", JCAP, 2, 8 (2010)
  9. Stern, D., Jimenez, R., Verde, L., Kamionkowski, M., and Stanford, S.A., "Cosmic Chronometers: Constraining the Equation of State of Dark Energy. II: A Spectroscopic Catalog of Red Galaxies in Galaxy Clusters", ApJS, 188, 280 (2010)
  10. Stern, D., et al., "Mid-Infrared Selections of Brown Dwarfs and High-Redshift Quasars," ApJ, 663, 677-685 (2007)
  11. Stern, D., Chary, R., Eisenhardt, P., & Moustakas, L., "Spitzer Observations of the Prototypical Extremely Red Objects HR10 and LBDS53W091: Separating Dusty Starbursts from Old Ellipticals," AJ, 132, 1405-1414 (2006)
  12. Stern, D., Eisenhardt, P., Gorjian, V., et al., "Mid-Infrared Properties of Active Galaxies," Ap. J, 631, 163-168 (2005)
  13. Stern, D., Yost, S., Eckart, M., Harrison, F., Helfand, D., Djorgovski, S.G., Malhotra, S., & Rhoads, J.E., "Discovery of a Lyman-Alpha Emitting Galaxy at z = 6.545 and Constraints on the Epoch of Reionization," ApJ, 619, 12-18 (2005)
  14. Stern, D., Sand, D., van Dokkum, P.G., Bloom, J.S., Ellis, R.S., Frail, D.A., Kneib, J.-P., Koopmans, L.V.E., Nugent, P., Sullivan, M., and Treu, T., "Discovery of a Transient U -Band Dropout in a Lyman-Break Survey: A Tidally-Disrupted Star at z = 3.3?," ApJ, APJ, 612, 690-697 (2004)
  15. Stern, D., Hall, P., Barrientos, L.F., Bunker, A.J., Elston, R., Ledlow, M.J., Raines, S.N., & Willis, J., "Gemini-South + FLAMINGOS Demonstration Science: Near-IR Spectroscopy of the z = 5.77 Quasar SDSS J083643.85+005453.3," ApJ L, 596, L39-42 (2003)
  16. Stern, D., Holden, B., Stanford, S.A., & Spinrad, H., "Spectroscopic Confirmation of a Radio-Selected Galaxy Group at z = 1.11," AJ, 125, 2759-2768 (2003)
  17. Stern, D., et al., "SPICES II: Optical and Near-Infrared Identifications of Faint X-Ray Sources from Deep Chandra Observations of Lynx," AJ, 123, 2223-2245 (2002)
  18. Stern, D., et al., "Chandra Detection of a Type-II Quasar at z = 3.288," ApJ, 568, 71-81 (2002)
  19. Stern, D., Eisenhardt, P., Spinrad, H., Dawson, S., van Breugel, W., Dey, A., de Vries, W., & Stanford, S.A., "Evidence Against a Redshift z > 6 for the Galaxy STIS 123627+621755," Nature, 408, 560-562 (2000)
  20. Stern, D., Bunker, A.J., Spinrad, H., & Dey, A., "One-Line Redshifts and Searches for High-Redshift Lyman-Alpha Emission," ApJ, 537, 73-79 (2000)
  21. Stern, D., Spinrad, H., Eisenhardt, P.R., Bunker, A.J., Dawson, S., Stanford, S.A., & Elston, R., "Discovery of a Color-Selected Quasar at z = 5.50," ApJ, 533, L75-L78 (2000)
  22. Stern, D., Djorgovski, S.G., Perley, R., de Calvalho, R., Wall, J., "Radio Properties of Optically-Selected z > 4 Quasars," AJ, 132, 1526-1533 (2000)
  23. Stern, D., Dey, A., Spinrad, H., Maxfield, L., Dickinson, M., Schlegel, D., & Gonzalez, R., "New High Redshift Radio Galaxies from the MG Catalog," AJ, 117, 1122-1138 (1999)
  24. Stern, D. & Spinrad, H., "Search Techniques for Distant Galaxies," PASP, 111, 1475-1502 (1999)
  25. Stern, D., Spinrad, H., & Dickinson, M., "HST Observations of the Radio Galaxy MG 1136+1346 (z = 1.003)," AJ, 111, 102-108 (1996)
  26. Stern1, D., Scott, D., & Silk, J., "Microwave Background Anisotropy in a Toroidal Universe," Phys. Rev. Lett., 71, 20-23 (1993)

1 My surname at the time of this publication was Stevens; I have since returned to the pre-WWII family surname of Stern.