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ics Colloquium
Friday, November 5, 1999
4:00 PM
Physics Building, Room 204
Note special time.
David Spergel [Host: Peter Arnold]
Princeton University
"Cosmic Microwave Background Fluctuations: A Probe of Cosmology"
Observations of the microwave background are a powerful probe of the physics of the early universe and of cosmological parameters. Over the past few years, there has been a dramatic improvement in the quality of data. The current observations are consistent with a flat universe with a cosmological constant in which inflation produced the primordial fluctuations. Next year, NASA plans to launch MAP, a satellite that will make precision measurements of microwave background fluctuations. With these measurements, we will be able to test our basic cosmological paradigm. If correct, we can then use these observations to measure the basic cosmological parameters to high precision.

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