A test of the evolution of gas depletion factor in galaxy clusters using strong gravitational lensing systems

Holanda, R. F. L. and Bora, Kamal and Desai, Shantanu (2022) A test of the evolution of gas depletion factor in galaxy clusters using strong gravitational lensing systems. The European Physical Journal C, 82 (6). pp. 1-10. ISSN 1434-6052

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Abstract

In this work, we discuss a new method to probe the redshift evolution of the gas depletion factor, i.e. the ratio by which the gas mass fraction of galaxy clusters is depleted with respect to the universal mean of baryon fraction. The dataset we use for this purpose consists of 40 gas mass fraction measurements measured at r2500 using Chandra X-ray observations, strong gravitational lensing sub-samples obtained from SLOAN Lens ACS + BOSS Emission-line Lens Survey (BELLS) + Strong Legacy Survey SL2S + SLACS. For our analysis, the validity of the cosmic distance duality relation is assumed. We find a mildly decreasing trend for the gas depletion factor as a function of redshift at about 2.7σ. © 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 would like to express his gratitude towards 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. We are grateful to the anonymous referee for many constructive comments and feedback on our manuscript.

Uncontrolled Keywords:

gas depletion,galaxy clusters,strong gravitational lensing

Subjects:

Physics

Divisions:

Department of Physics

Depositing User:

. LibTrainee 2021

Date Deposited:

08 Oct 2022 10:05

Last Modified:

08 Oct 2022 10:05