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Princeton University Physics Department Princeton University

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Cosmology Experiment

Work in cosmology, in close collaboration with the theoretical group, includes analyses of relatively nearby structures from published data and deep surveys of galaxies using the Hubble Space Telescope and ground-based telescopes.

WMAP Internal Linear Combination Map The group is on the cutting edge of measurements of the 2.73 K cosmic background radiation (CMB). The CMB is the after-glow of the hot early stages of expansion of our universe; in its temperature and angular distribution are encoded the histories of ionization and structure formation and of the time-evolution of the rate of expansion of the universe. Theses generally involve building a sensitive and stable receiver out of commercial and home-brew parts, and making and analyzing observations from ground- or balloon-based platforms. Act Telescope The group is heavily involved in the WMAP satellite, a partnership between Princeton and NASA Goddard Space Flight Center. Princeton is the lead partner for the ACT experiment, and heavily involved with the QUIET, SPIDER, BiCEP, Planck, and PCAM experiments to measure the temperature and polarization anisotropies in the CMB.

Edward J. Groth: Galaxies, large scale structure, cosmology, Hubble Space Telescope. Lyman Page: Cosmic microwave background anisotropy, satellite, balloon, and ground-based experiments, CMB polarization measurements.
Suzanne Staggs: Cosmic microwave background: ground-based and balloon-based experiments to measure the CMB polarization anisotropy and its absolute temperature, CMB polarization measurements. Joseph H. Taylor: CMB polarization measurements. (Emeritus)
Joseph Fowler: Cosmic microwave background anisotropy. Ground-base interferometers and bolometer arrays Bill Jones: Cosmic microwave background, PLANCK, CMB polarization, SPIDER, BiCEP
Norman Jarosik: Cosmic microwave background, WMAP analysis, bolometer arrays, coherent receivers David Spergel: Interests range from the search for planets around nearby stars to the shape of the universe.


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