Scott Dodelson is a Scientist at Fermi National Accelerator Laboratory and Professor in the Department of Astronomy and Astrophysics and the Kavli Institute for Cosmological Physics at the University of Chicago. He received his PhD from Columbia University, after which he did post-doctoral work at Harvard University and Fermilab. He was hired on to the staff at Fermilab in 1994 and served as Head of the Theoretical Astrophysics Group and co-founder and Interim Director of the Center for Particle Astrophysics. He is the author of the textbook, Modern Cosmology, and over 130 scientific papers as well as editor of two other books. Dodelson has served on the Astronomy and Astrophysics Advisory Committee and numerous other local and national committees. He is a Fellow of the American Physics Society and Editor of Physics Letters B and the Journal of Astroparticle Physics.
Dodelson's work lies at the interface of the study of the Large and Small, cosmology and particle physics. In the early 1990's, he and Larry Widrow proposed that sterile neutrinos comprise the dark matter of the Universe, and the two of them with Brian Greene introduced one of the first models of asymmetric dark matter. In the mid-1990's, he and collaborators were the first to compute the spectrum of anisotropies in the cosmic microwave background (CMB) in a wide range of models, including cosmic strings, massive neutrinos, and dark energy. He and Lloyd Knox combined data from various experiments in the late 1990's to show that the Universe is flat, an observation that -- together with the observed matter density in the Universe -- pointed to the existence of dark energy, evidence for which had recently been accumulated from distant supernovae. As the evidence firmed up, Dodelson and collaborators proposed several early models that explained this acceleration. In 2006, Dodelson and student Michele Liguori showed that Bekenstein's TeVeS model produces the extra growth of structure in the Universe that is needed in any no-dark model matter. With collaborators in 2007, he proposed one of the first tests that could distinguish between dark energy and modified gravity.
Apart from this theoretical work, Dodelson led the efforts to analyze early data from the Sloan Digital Sky Survey in 2001, analyzed the CMB experiments MSAM and Python, and is now co-convenor of one of the Working Groups in the Dark Energy Survey. In late 2011, he and collaborators completed an analysis of gravitational lensing in Stripe 82 of the Sloan Survey.
Phone: (630) 840-2426