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Tuesday, December 3, 2013

(PHYSICS COLLOQUIUM) Planck and Beyond

Speaker: David Spergel, Princeton University Abstract:The Planck satellite has made an accurate full-sky measurement of the microwave background temperature fluctuations. These measurements probe both the physics of the very early universe and the basic properties of the universe today. The Planck measurements confirm the earlier WMAP and ground-based results, rigorously test our standard cosmological model and provide an accurate determination of basic cosmological parameters (the curvature of the universe, its matter density and composition). When combined with other astronomical measurements, the measurements constrain the properties of the dark energy and the mass of the neutrino. The observations also directly probe the physics of inflation: the current data imply that the primordial fluctuations were primarily adiabaticand nearly scale invariant. Full abstract at, {Will appear in FYI on Dec 3, 2013
Start Time:
4:00 PM
End Time:
5:00 PM
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Other Contact Information:
Carole Cuaresma Kiger +1 301 405 5945

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