Joshua A. Frieman

Theoretical Astrophysics Group, Fermilab; Professor, Dept. of Astronomy & Astrophysics

Ph.D., Physics, University of Chicago, 1985
 
Contact Information
Phone: (773)702-7971
Location: ERC 453
Email: friemanfnal.gov
WWW: Web Site
 
Research
The 2.5-meter telescope at Apache Point Observatory, named the Sloan Foundation Telescope in recognition of the pivotal and generous support of the Alfred P. Sloan Foundation through all phases of the SDSS.
Josh Frieman is a senior staff member (Scientist III) in the Theoretical Astrophysics group at Fermilab and the Fermilab Center for Particle Astrophysics. He is also Professor of Astronomy and Astrophysics at the University of Chicago, where he is a member of the Kavli Institute for Cosmological Physics.
Frieman earned a B.Sc. degree from Stanford (1981) and a PhD in Physics from the University of Chicago (1985). After a postdoc in the SLAC Theory Group, he joined the scientific staff at Fermilab in 1988. He served as Head of the Theoretical Astrophysics Group from 1994 to 1999. He is a Fellow of the American Physical Society and of the American Association for the Advancement of Science and a Trustee of the Aspen Center for Physics. He has served on the Executive Committee of the APS Divison of Astrophysics, on the Particle Physics Project Prioritization Panel (P5) of HEPAP, on the Astro 2010 Decadal Survey Committee, and on the Astronomy and Astrophysics Advisory Committee (AAAC).

Frieman's research centers on theoretical and observational cosmology, including studies of the nature of dark energy, the early Universe, gravitational lensing, the large-scale structure of the Universe, and supernovae as cosmological distance indicators. The author of over 230 publications, he led the Sloan Digital Sky Survey (SDSS-II) Supernova Survey, which discovered over 500 type Ia supernovae for cosmology studies, and served as chair of the SDSS Collaboration Council. He is a founder of and currently serves as Director of the Dark Energy Survey, a collaboration of over 120 scientists from 20 institutions on 3 continents, which is building a 570-Megapixel camera to carry out a wide-field survey on the Blanco 4-meter telescope at Cerro Tololo Inter-American Observatory in Chile to probe the origin of cosmic acceleration.

Ongoing Scientific Projects:

Past Scientific Projects: Sloan Digital Sky Survey (SDSS) | SDSS Supernova Survey (SDSS SS)
 
KICP Highlights & News

 
Talks, Lectures, & Workshops

 
Students
GRADUATE STUDENTS
Past Students

GRADUATE: Jennifer Helsby (2015), Alan Zablocki (2015), Felipe Marin (2010), Carlos E. Cunha (2008), Benjamin E. Dilday (2008), David Johnston (2003), Jonathan Mitchell (2003), Craig Wiegert (2003)

UNDERGRADUATE: Paul Williams (2015), Alex Lanzano (2013), Rebecca Pierce (2013)
 
Currently in Committees
  • Fellowship committee
  • Appointments committee
  • PFC Executive committee

 
KICP Publications
2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001


Latest Journal Publications
  1. "The Dark Energy Survey: more than dark energy - an overview", Monthly Notices of the Royal Astronomical Society, Volume 460, Issue 2, p.1270-1299 (Aug 2016)
  2. "Galaxy bias from the Dark Energy Survey Science Verification data: combining galaxy density maps and weak lensing maps", Monthly Notices of the Royal Astronomical Society, Volume 459, Issue 3, p.3203-3216 (Jul 2016)
  3. "Crowdsourcing quality control for Dark Energy Survey images", Astronomy and Computing, Volume 16, p. 99-108 (Jul 2016)
  4. "VDES J2325-5229 a z=2.7 gravitationally lensed quasar discovered using morphology independent supervised machine learning", arXiv:1607.01391 (Jul 2016)
  5. "Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing", Monthly Notices of the Royal Astronomical Society, Volume 459, Issue 1, p.21-34 (Jun 2016)
  6. "A Dark Energy Camera Search for Missing Supergiants in the LMC after the Advanced LIGO Gravitational-wave Event GW150914", The Astrophysical Journal Letters, Volume 823, Issue 2, article id. L34, pp. (2016) (Jun 2016)
  7. "A Dark Energy Camera Search for an Optical Counterpart to the First Advanced LIGO Gravitational Wave Event GW150914", The Astrophysical Journal Letters, Volume 823, Issue 2, article id. L33, pp. (2016) (Jun 2016)
  8. "Assessment of Systematic Chromatic Errors that Impact Sub-1% Photometric Precision in Large-area Sky Surveys", The Astronomical Journal, Volume 151, Issue 6, article id. 157, 16 pp. (2016) (Jun 2016)
  9. "A DECam Search for an Optical Counterpart to the LIGO Gravitational Wave Event GW151226", arXiv:1606.04538 (Jun 2016)
  10. "The Evolution of Active Galactic Nuclei in Clusters of Galaxies from the Dark Energy Survey", arXiv:1606.06775 (Jun 2016)
  11. "Digging deeper into the Southern skies: a compact Milky Way companion discovered in first-year Dark Energy Survey data", Monthly Notices of the Royal Astronomical Society, Volume 458, Issue 1, p.603-612 (May 2016)
  12. "Digging deeper into the Southern skies: a compact Milky Way companion discovered in first-year Dark Energy Survey data", Monthly Notices of the Royal Astronomical Society, Volume 458, Issue 1, p.603-612 (May 2016)
  13. "Testing the lognormality of the galaxy and weak lensing convergence distributions from Dark Energy Survey maps", arXiv:1605.02036 (May 2016)
  14. "The DES Science Verification Weak Lensing Shear Catalogues", Monthly Notices of the Royal Astronomical Society, Advance Access (May 2016)
  15. "The RedMaPPer Galaxy Cluster Catalog From DES Science Verification Data", The Astrophysical Journal Supplement Series, Volume 224, Issue 1, article id. 1, pp. (2016) (May 2016)
  16. "Cosmic Voids and Void Lensing in the Dark Energy Survey Science Verification Data", arXiv:1605.03982 (May 2016)
  17. "Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey", arXiv:1605.08770 (May 2016)
  18. "redMaGiC: Selecting Luminous Red Galaxies from the DES Science Verification Data", Monthly Notices of the Royal Astronomical Society, Advance Access (May 2016)
  19. "Galaxy Populations in Massive Galaxy Clusters to z=1.1: Color Distribution, Concentration, Halo Occupation Number and Red Sequence Fraction", arXiv:1604.00988 (Apr 2016)
  20. "Galaxy bias from the DES Science Verification data: combining galaxy density maps and weak lensing maps", Monthly Notices of the Royal Astronomical Society, Advance Access. 18 pp (Apr 2016)

Latest Conference Proceedings
  1. "Properties of type Ia supernovae inside rich galaxy clusters", XIV Latin American Regional IAU Meeting (Eds. A. Mateus, J. Gregorio-Hetem & R. Cid Fernandes) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 44, pp. 206-206 (2014) (Oct 2014)
  2. "The Dark Energy Survey and operations: Year 1", Proceedings of the SPIE, Volume 9149, id. 91490V 15 pp. (2014) (Aug 2014)
  3. "The Dark Energy Survey: Overview", American Astronomical Society, AAS Meeting #221, id.#335.01 (Jan 2013)
  4. "Correlations Between Type Ia Supernovae and Their Host Galaxies Using the SDSS and Multi-wavelength Photometry", American Astronomical Society, AAS Meeting #221, id.#106.06 (Jan 2013)
  5. "The Dark Energy Spectrometer: a potential multi-fiber instrument for the Blanco 4-meter Telescope", Ground-based and Airborne Instrumentation for Astronomy IV. Proceedings of the SPIE, Volume 8446, article id. 844656, 13 pp. (2012) (Sep 2012)
  6. "Dark Energy Spectrometer - A Proposed Multi-Fiber Instrument for the Blanco 4 Meter Telescope", American Astronomical Society, AAS Meeting #219, #422.09 (Jan 2012)
  7. "WFC3 and WFPC2 Follow Up of Strong Gravitational Lenses", American Astronomical Society, AAS Meeting #217, #347.03; Bulletin of the American Astronomical Society, Vol. 43, 2011 (Jan 2011)
  8. "SBAS: The Sloan Bright Arcs Survey", American Astronomical Society, AAS Meeting #217, #347.01; Bulletin of the American Astronomical Society, Vol. 43, 2011 (Jan 2011)
  9. "The Dark Energy Survey", American Astronomical Society, AAS Meeting #217, #205.01; Bulletin of the American Astronomical Society, Vol. 43, 2011 (Jan 2011)
  10. "Identifying Faint Supernovae in the SDSS-II SN Survey Data", American Astronomical Society, AAS Meeting #215, #430.21; Bulletin of the American Astronomical Society, Vol. 42, p.359 (Jan 2010)

 
Visitors
Past Visitors:
  1. Aurélien Benoit-Lévy, University College London / Institut d'Astrophysique de Paris (2016)
  2. Keith Bechtol, WIPAC / University of Wisconsin-Madison (2015)
  3. Chihway Chang, ETH Zurich (2015)
  4. Steve Kahn, Stanford National Accelerator Laboratory (2014)
  5. Brian Nord, Fermilab (2014)
  6. Natalie Roe, LBNL (2014)
  7. Florian Beutler, University of Western Australia (2012)
  8. Felipe Marin, Swinburne University (2011)
  9. Roberto Trotta, Imperial College London (2011)
  10. Felipe Marin, Swinburne University (2010)
  11. Tamara Davis, University of Queensland (2009)
  12. Renee Hlozek, University of Oxford (2009)
  13. Alexandra Abate, University College London (2008)
  14. Manda Banerji, University College London (2008)
  15. Alison Coil, University of California, San Diego (2008)
  16. Tamara Davis, University of Queensland (2008)
  17. Eanna Flanagan, Cornell University (2008)
  18. Marcelo Gleiser, Dartmouth College (2008)
  19. Ofer Lahav, University College London (2008)
  20. Julie McEnery, NASA, Goddard Space Flight Center (2008)
  21. Jean Quashnock, Carthage College (2007)
  22. Mat Smith, University of Portsmouth (2007)
  23. Joseph Zuntz, Imperial College, London (2007)
  24. Anna Cabre Albos, Institut d'Estudis Espacials de Catalunya (2006)
  25. David Cinabro, Wayne State University (2006)
  26. Rogerio Rosenfeld, Instituto de Fisica Teorica-UNESP (2006)
  27. Masao Sako, University of Pennsylvania (2006)
  28. Brandon Allgood, University of California, Santa Cruz (2005)
  29. Lifan Wang, Lawrence Berkeley National Laboratory (2005)
  30. Alexander Conley, University of California, Berkeley (2004)
  31. Masao Sako, Stanford University (2004)
  32. Roman Scoccimarro, New York University (2004)
  33. Andreas Berlind, New York University (2003)
  34. Enrique Gaztanaga, Instituto Nacional de Astrofisica (2002)
  35. Timothy McKay, University of Michigan (2002)
  36. Erin Sheldon, University of Michigan (2002)