Résumé / Abstract Journal-club_Univers

Journal-club Univers / Journal-club Universe

« Cosmic hemispherical asymmetry and its implications »

Suvodip Mukherjee
postdoc - Institut d'Astrophysique de Paris (Paris, France)

Measurements by WMAP and Planck have indicated nearly a 3s departure from statistical isotropy in the temperature field of cosmic microwave background (CMB) at large scales, which is popularly known as Hemispherical Asymmetry. Such an anomalous signal is beyond the standard LCDM cosmological model and can lead to important cosmological consequences. We will discuss an inevitable effect of the asymmetry on CMB B-mode polarization due to weak lensing which is accessible by future CMB missions. The effect of the asymmetry on the derived cosmological parameters and its implication on partial sky measurements will also be discussed.
mardi 31 janvier 2017 - 11:15
Salle 281, Institut d'Astrophysique
Pages web du journal-club / Journal-club's webpage