Time and Matter 2010

Session

The Universe - from the Big Bang to the Present

5 Oct 2010, 09:30

Hotel Splendid

18. Exploring the primordial Universe with CMB polarization

Prof. Jean-Christophe Hamilton (University of Paris 7)

05/10/2010, 09:30

Observations of the Cosmic Microwave Background anisotropies have led over the last decade to spectacular results concerning the cosmological model describing our Universe. The specific angular scales of the temperature and polarization anisotropies, along with other cosmological probes, have allowed for an accurate measurement of the cosmological parameters leading to the LambdaCDM model. All...

21. QUIET Experiment - Ground-based probe of CMB Polarization

Prof. Osamu Tajima (KEK, IPNS, Japan)

05/10/2010, 11:00

The Q/U Imaging ExperimenT (QUIET) is a ground-based radiometer array designed to measure the polarization of the Cosmic Microwave Background (CMB) radiation. The polarization of the CMB can be decomposed into a curl-free component, or E-modes, and divergence-free component, or B-modes. Previous observations for the E-modes as well as temperature anisotropy of the CMB have been used to...

22. Model independent constraints from the CMB

Dr Marc Vonlanthen (University of Geneva, Switzerland)

05/10/2010, 11:30

We analyse CMB data in a manner which is as model-independent as possible. We encode the effects of late-time cosmology into a single parameter which describes the distance to the last scattering surface, similar to the shift parameter, and exclude low multipoles, up to l 40 from the analysis. We consider the WMAP five-year as well as ACBAR 2008 observations. We obtain constraints on...