Analytic expressions for the dark matter-baryon relations

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2 Citations (Scopus)

Abstract

Recently, some very strong correlations between the distribution of dark matter and baryons (the dark matter-baryon relations) in galaxies with very different morphologies, masses, sizes and gas fractions have been obtained. Some models have been suggested to explain why the dark matter contribution is fully specified by that of the baryons. In this paper, we derive two analytic expressions to explain the observed dark matter-baryon relations based on the cold dark matter (CDM) model. The resultant expressions give excellent agreement with the observational data. The parameters involved in the analytic expressions are closely related to the amount of the baryon content. This model can provide a theoretical understanding of the strong correlations observed. We suggest that the observed relation represents the end product of galaxy formation. Copyright © 2017 World Scientific Publishing Company.
Original languageEnglish
Article number1750118
JournalInternational Journal of Modern Physics D
Volume26
Issue number10
DOIs
Publication statusPublished - Sep 2017

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Dark Matter
Baryon
baryons
dark matter
Galaxies
galactic evolution
Model
galaxies
products
gases
gas

Citation

Chan, M. H. (2017, September). Analytic expressions for the dark matter-baryon relations. International Journal of Modern Physics D, 26(10), Article 1750118. Retrieved September 6, 2017, from http://dx.doi.org/10.1142/S0218271817501188

Keywords

  • Dark matter