Dark matter halo structure in CDM hydrodynamical simulations

P. B. Tissera, R. Domínguez-Tenreiro

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

We have carried out a comparative analysis of the properties of dark matter haloes in N-body and hydrodynamical simulations. We analyse their density profiles, shapes and kinematical properties with the aim of assessing the effects that hydrodynamical processes might produce on the evolution of the dark matter component. The simulations performed allow us to reproduce dark matter haloes with high resolution, although the range of circular velocities is limited. We find that for haloes with circular velocities of [150-200] km s-1 at the virial radius, the presence of baryons affects the evolution of the dark matter component in the central region, modifying the density profiles, shapes and velocity dispersions. We also analyse the rotation velocity curves of disc-like structures and compare them with observational results.

Original languageEnglish
Pages (from-to)177-194
Number of pages18
JournalMonthly Notices of the Royal Astronomical Society
Volume297
Issue number1
DOIs
Publication statusPublished - 11 Jun 1998

Keywords

  • Dark matter
  • Galaxies: evolution
  • Galaxies: formation
  • Hydrodynamics
  • Methods: numerical

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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