Delta T_SZ - L_x Relation as a Cosmological Tool

Details Delta T_SZ - L_x Relation as a Cosmological Tool Delta T_SZ - L_x Relation as a Cosmological Tool

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...192.1705c&link_type=abstract

American Astronomical Society, 192nd AAS Meeting, #17.05; Bulletin of the American Astronomical Society, Vol. 30, p.843

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Scientific paper

We present the relation between Delta T_SZ, the cosmic microwave background (CMB) temperature decrement due to the Sunyaev-Zeldovich (SZ) effect, and L_x, the X-ray luminosity of galaxy clusters. We discuss this relation in terms of the cluster properties, and show that the observed Delta T_SZ-L_x relation is in agreement with both the M_gas-L_x relation based on X-ray emission observations, and the L_x-T_e relation based on numerical simulations and observations. We will outline several uses of the Delta T_SZ-L_x relation and its possible redshift evolution in present cluster based cosmological studies. This relation may well be a crucial, and much needed, tool to study the distant SZ clusters.

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