Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 441, Issue 4, Pages 2986-2995Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stu729
Keywords
hydrodynamics; galaxies: evolution; dark matter
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Funding
- MICINN (Spain) through MINECO [AYA2012-31101]
- MultiDark project [CSD2009-00064]
- MICINN [AYA2012-31101]
- German Research Foundation (DFG) [Sonderforschungsbereich SFB 881]
- Ministerio de Economia y Competitividad (MINECO) in Spain [AYA2012-31101]
- Spanish Ministerio de Ciencia e Innovacion (MICINN) [CSD2009-00064]
- Australian Research Council (ARC) [DP130100117, DP140100198]
- EU within the DEISA Extreme Computing Initiative [RI-031513, RI-222919]
- Science and Technology Facilities Council [ST/K000373/1, ST/J001341/1] Funding Source: researchfish
- STFC [ST/J001341/1, ST/K000373/1] Funding Source: UKRI
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We introduce a mass-dependent density profile to describe the distribution of dark matter within galaxies, which takes into account the stellar-to-halo mass dependence of the response of dark matter to baryonic processes. The study is based on the analysis of hydrodynamically simulated galaxies from dwarf to Milky Way mass, drawn from the Making Galaxies In a Cosmological Context project, which have been shown to match a wide range of disc scaling relationships. We find that the best-fitting parameters of a generic double power-law density profile vary in a systematic manner that depends on the stellar-to-halo mass ratio of each galaxy. Thus, the quantity M-a
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