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Astro/Particle Seminar


Observations of Primary and Secondary Anisotropies in the CMB: Constraining Models in the Era of Precision Cosmology

Carlo Contaldi
CITA

Time
 
Tue. October 15, 2002     11:30 AM     Room 201

Abstract
 
I will review the latest results from a number of CMB experiments, focusing mainly on the BOOMERanG and Cosmic Background Imager (CBI) results which together offer the most precise measurements of the CMB down to a few arcminute scales. I will discuss constraints on cosmological parameters and models implied by the observations. Recently the CBI has reported a signature in excess of standard models at multipoles above 2000. I will discuss the significance of this measurement as a possible detection of secondary anisotropies due to the Sunyaev-Zeldovich effect. Prospects for future observations of the polarization of the CMB will also be discussed in light of the recent claims of detection of E-type polarization by the DASI interferometer experiment.

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