A test of linearity of the ratio of dark matter to baryonic matter in galaxy clusters

Desai, Shantanu (2023) A test of linearity of the ratio of dark matter to baryonic matter in galaxy clusters. Physics of the Dark Universe, 40. p. 101182. ISSN 2212-6864

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Abstract

We search for a linearity in the ratio of dark matter to baryonic matter as a function of radius for galaxy clusters, motivated by a recent result by Lovas (2022), who has discovered such a linearity for a diverse suite of galaxies in the SPARC sample. For our analysis, we used a sample of 54 non-cool core clusters from the HIFLUGCS sample. We do not find any evidence for a linear trend in the aforementioned ratio as a function of radius for individual clusters. We then repeat this analysis for the stacked sample, which also does not show this linearity. Therefore, the linear scaling found by Lovas is not a universal property of dark matter haloes at all scales.

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IITH Creators:
IITH CreatorsORCiD
Desai, Shantanuhttp://orcid.org/0000-0002-0466-3288
Item Type: Article
Uncontrolled Keywords: Dark matter; Galaxy clusters; HIFLUGCSHIFLUGCS; Lovas; SPARC; galaxy
Subjects: Physics
Physics > Astronomy Astrophysics
Divisions: Department of Physics
Depositing User: Mr Nigam Prasad Bisoyi
Date Deposited: 26 Sep 2023 07:50
Last Modified: 26 Sep 2023 07:50
URI: http://raiith.iith.ac.in/id/eprint/11698
Publisher URL: https://doi.org/10.1016/j.dark.2023.101182
OA policy: https://v2.sherpa.ac.uk/id/publication/24554
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