CAA-Seminar 06
Title: Searching for Missing Baryons with WMAP and PLANCK
Speaker: Fernando Atrio Barandela, Universidad de Salamanca
Time and place: 14:00--15:00,May.24（Friday）, 2013, CAA Lecture Hall,jianchuan Road 955
Abstract:
About half the baryons in the local Universe could be in the form of a Warm Hot Intergalactic Medium (WHIM). If a large fraction of the gas is ionized,it could produce significant temperature anisotropies in the Cosmic Microwave Background (CMB), generated by the thermal and also the kinematic Sunyaev-Zeldovich effect. We have developed a theoretical framework to describe the mildly non-linear regime of the WHIM that allows us to compute its contribution to CMB anisotropies measured by the WMAP and PLANCK satellites. We also discuss prospective ways of detecting this contribution by cross correlating templates constructed from galaxy catalogs with CMB data.
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