Galaxy cluster Sunyaev-Zel'dovich effect scaling-relation and type Ia supernova observations as a test for the cosmic distance duality relation
arXiv:1904.01342 · doi:10.1088/1475-7516/2019/06/008
Abstract
In this paper, we propose a new test to the cosmic distance duality relation (CDDR), , where and are the luminosity and angular diameter distances, respectively. The data used correspond to 61 Type Ia Supernova luminosity distances and measurements of 61 galaxy clusters obtained by the {\it Planck} mission and the deep XMM-Newton X-ray data, where is the integrated comptonization parameter obtained via Sunyaev-Zel'dovich effect observations and is the X-ray counterpart. More precisely, we use the scaling-relation and a deformed CDDR, such as , to verify if is compatible with the unity. Two functions are used, namely, and . { We obtain that the CDDR validity () is verified within c.l. for both functions.}.
7 pages, two figures, I table, Version accepted for publication in the JCAP