European Physical Journal C: Particles and Fields (Apr 2023)

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

  • Kamal Bora,
  • R. F. L. Holanda

DOI
https://doi.org/10.1140/epjc/s10052-023-11424-y
Journal volume & issue
Vol. 83, no. 4
pp. 1 – 8

Abstract

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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 . 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.