The Hubble constant from galaxy cluster scaling-relation and SNe Ia observations: a consistency test

Bora, Kamal (2023) The Hubble constant from galaxy cluster scaling-relation and SNe Ia observations: a consistency test. The European Physical Journal C, 83 (4). p. 274. ISSN 1434-6044

[img] Text
s10052-023-11424-y.pdf - Published Version

Download (836kB)

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 YSZEDA2/CXSZYX=C by combining the X-Ray and SZ observations of galaxy clusters at low redshifts (z< 0.1) from the first Planck mission all-sky data set (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 Λ CDM model for DA, the constant C from the first step and the Planck prior on Ω M parameter, we obtain H by using the galaxy cluster data with z> 0.1. As a result, we obtain H0=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.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Item Type: Article
Uncontrolled Keywords: X-Ray; supernovae; Hubble constant; Planck mission; sky data set; SH0ES team; galaxy clusters
Subjects: Physics
Physics > Astronomy Astrophysics
Divisions: Department of Physics
Depositing User: Mr Nigam Prasad Bisoyi
Date Deposited: 10 Sep 2023 04:27
Last Modified: 10 Sep 2023 04:27
URI: http://raiith.iith.ac.in/id/eprint/11658
Publisher URL: https://doi.org/10.1140/epjc/s10052-023-11424-y
OA policy: https://v2.sherpa.ac.uk/id/publication/28651
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 11658 Statistics for this ePrint Item