| Autor: |
Kamal Bora, R. F. L. Holanda |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
European Physical Journal C: Particles and Fields, Vol 83, Iss 4, Pp 1-8 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1434-6052 |
| DOI: |
10.1140/epjc/s10052-023-11424-y |
| Popis: |
Abstract In this paper, we propose a self-consistent test for a Hubble constant estimate using galaxy cluster and type Ia supernovae (SNe Ia) observations. The approach consists, in a first step, of obtaining the observational value of the galaxy cluster scaling-relation $$Y_{SZE}D_{A}^{2}/C_{XSZ}Y_X = C $$ Y SZE D A 2 / C XSZ Y X = C by combining the X-Ray and SZ observations of galaxy clusters at low redshifts ( $$z < 0.1$$ z < 0.1 ) from the first Planck mission all-sky data set ( $$0.044 \le z \le 0.444$$ 0.044 ≤ z ≤ 0.444 ), along with SNe Ia observations and making use of the cosmic distance duality relation validity. Then, by considering a flat $$\Lambda $$ Λ CDM model for $$D_A$$ D A , the constant C from the first step and the Planck prior on $$\Omega _M$$ Ω M parameter, we obtain $$H_0$$ H 0 by using the galaxy cluster data with $$z>0.1$$ z > 0.1 . As a result, we obtain $${ H_0=73.014^{+7.435}_{-6.688}}$$ H 0 = 73 . 014 - 6.688 + 7.435 km/s/Mpc, in full agreement with the latest results from HST + SH0ES team. We also compare our method with that one where the C parameter is obtained from hydrodynamical simulations of massive galaxy clusters. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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