Galaxy cluster Sunyaev-Zel'dovich effect scaling-relation and type Ia supernova observations as a test for the cosmic distance duality relation
In this paper, we propose a new test to the cosmic distance duality relation (CDDR), DL=DA(1+z)2, where DL and DA are the luminosity and angular diameter distances, respectively. The data used correspond to 61 Type Ia Supernova luminosity distances and YSZE-YX measurements of 61 galaxy clusters obta...
| Authors: | , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2019 |
| Country: | Brasil |
| Institution: | Universidade Estadual Paulista (UNESP) |
| Repository: | Repositório Institucional da UNESP |
| Language: | English |
| OAI Identifier: | oai:repositorio.unesp.br:11449/189430 |
| Online Access: | http://dx.doi.org/10.1088/1475-7516/2019/06/008 http://hdl.handle.net/11449/189430 |
| Access Level: | Open access |
| Keyword: | Galaxy clusters Sunyaev-Zeldovich effect Supernovas |
| Summary: | In this paper, we propose a new test to the cosmic distance duality relation (CDDR), DL=DA(1+z)2, where DL and DA are the luminosity and angular diameter distances, respectively. The data used correspond to 61 Type Ia Supernova luminosity distances and YSZE-YX measurements of 61 galaxy clusters obtained by the Planck mission and the deep XMM-Newton X-ray data, where YSZE is the integrated comptonization parameter obtained via Sunyaev-Zel'dovich effect observations and YX is the X-ray counterpart. More precisely, we use the YSZEDA 2/CXSZEYX scaling-relation and a deformed CDDR, such as DL/DA(1+z)2=η(z), to verify if η(z) is compatible with the unity. Two η(z) functions are used, namely, η(z)=1+η0 z and η(z)=1+η0 z /(1+z). We obtain that the CDDR validity (η0=0) is verified within 1.5σ c.l. for both η(z) functions. |
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