People
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Joshua A. Frieman Professor, Department of Astronomy and Astrophysics; and the College Education: BS 1981 (Physics) Stanford University; PhD 1985 (Physics) University of Chicago Phone: (630) 840-2226; (773) 702-7971 Location: Fermilab; ERC 453 Email: friemanfnal.gov Webpage Affiliations: Fermi National Accelerator Laboratory; Kavli Institute for Cosmological Physics Research Cosmology, large-scale structure, dark energy Publications: ADS | arXiv | inSPIRE Frieman's primary research is in theoretical and observational cosmology, especially dark energy, large-scale structure, the early universe, and the interplay between cosmology, particle physics, and astrophysics. Current and recent research projects include: the analysis of the SDSS-II Supernova Survey, which discovered 500 spectroscopically confirmed type Ia supernovae, and which led to improved constraints on dark energy and better understanding of SNe Ia as cosmological distance indicators; analysis and modeling of large-scale structure in galaxy surveys such as the Sloan Digital Sky Survey; the use of weak gravitational lensing observations to probe the distribution of mass on galaxy and cluster scales. He currently serves as Director of the Dark Energy Survey, a collaboration of 120 scientist from 3 continents, which is deploying a 570-megapixel camera on the Blanco 4-meter telescope at CTIO to carry out a wide-field servey to probe Dark Energy and the origin of cosmic acceleration. Frieman is a member of the Theoretical Astrophysics group at Fermilab, which has close connections with the cosmologists and theoretical astrophysicists at Chicago. Member of Research Groups:
Scientific Projects
Past scientific projects: Sloan Digital Sky Survey (SDSS) Graduate Students Past Graduate Students: James Lasker (2020, Astronomy and Astrophysics); Ross Cawthon (2018, Astronomy and Astrophysics); Jennifer Helsby (2015, Astronomy and Astrophysics); Alan Zablocki (2014, Astronomy and Astrophysics); Felipe Marin (2010, Astronomy and Astrophysics); Carlos E. Cunha (2008, Astronomy and Astrophysics); Dilday Dilday (2003, Physics); Craig Wiegert (2003, Astronomy and Astrophysics); Michael E. Joffre (2000, Astronomy and Astrophysics); Roman Scoccimarro (1996, Astronomy and Astrophysics); Andrew H. Jaffe (1994, Astronomy and Astrophysics) Teaching Courses Past courses:
Department Committees Past Department Committees:
Department News & Highlights
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