Milky way satellite properties in a ΛcDM universe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We revisit the issue of whether the basic properties of satellite galaxies around the Milky Way, such as their number density, radial distribution, and central mass, can be reproduced within current cosmological ΛCDM-based models. For this purpose we combine merger trees extracted from very high resolution N-body simulations with three different semi-analytic model (SAM) codes. These merger trees describe the hierarchical assembly of a Milky Way-like halo, while the SAMs are used to predict the relationship between the dark matter (sub)haloes and observable galaxy properties, allowing us to make a direct and detailed comparison with observational data. We conclude that both the luminosity function and the observed relation between luminosity and central mass can be naturally accounted for within the (Λ) Cold Dark Matter paradigm.

Original languageEnglish (US)
Title of host publicationHunting for the Dark
Subtitle of host publicationThe Hidden Side of Galaxy Formation - Proceedings of the International Conference
Pages355-358
Number of pages4
DOIs
StatePublished - Aug 23 2010
EventInternational Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation" - Qawra, Malta
Duration: Oct 19 2009Oct 23 2009

Publication series

NameAIP Conference Proceedings
Volume1240
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation"
CountryMalta
CityQawra
Period10/19/0910/23/09

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Macciò, A. V. (2010). Milky way satellite properties in a ΛcDM universe. In Hunting for the Dark: The Hidden Side of Galaxy Formation - Proceedings of the International Conference (pp. 355-358). (AIP Conference Proceedings; Vol. 1240). https://doi.org/10.1063/1.3458532