A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers

Bora, Kamal and Holanda, R. F. L. and Desai, Shantanu and et al, . (2022) A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers. The European Physical Journal C, 82 (1). pp. 1-6. ISSN 1434-6044

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Abstract

In this paper, we implement a test of the standard law for the dark matter density evolution as a function of redshift. For this purpose, only a flat universe and the validity of the FRW metric are assumed. A deformed dark matter density evolution law is considered, given by ρc(z) ∝ (1 + z) 3+ϵ, and constraints on ϵ are obtained by combining the galaxy cluster gas mass fractions with cosmic chronometers measurements. We find that ϵ= 0 within 2σ c.l., in full agreement with other recent analyses. © 2022, The Author(s).

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IITH Creators:

IITH Creators	ORCiD
Desai, Shantanu	http://orcid.org/0000-0002-0466-3288

Item Type:

Article

Additional Information:

KB acknowledges the Department of Science and Technology, Government of India for providing the financial support under DST-INSPIRE Fellowship program. RFLH thanks CNPq No.428755/2018-6 and 305930/2017-6. SHP would like to thank CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazilian research agency, for financial support, grants number 303583/2018-5.

Uncontrolled Keywords:

dark matter density , galaxy cluster gas mass fractions,

Subjects:

Physics

Divisions:

Department of Physics

Depositing User:

. LibTrainee 2021

Date Deposited:

27 Jul 2022 07:24

Last Modified:

27 Jul 2022 07:24