Fossil group origins : V. The dependence of the luminosity function on the magnitude gap

Download
  1. (PDF, 772 KB)
  2. Get@NRC: Fossil group origins : V. The dependence of the luminosity function on the magnitude gap (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1051/0004-6361/201425506
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleAstronomy and Astrophysics
ISSN0004-6361
1432-0746
Volume581
PagesA16-1A16-11
Subjectgalaxies: clusters: general; galaxies: groups: general; galaxies: luminosity function, mass function
AbstractContext. In nature we observe galaxy aggregations that span a wide range of magnitude gaps between the two first-ranked galaxies of a system (Δm₁₂). Thus, there are systems with gaps close to zero (e.g., the Coma cluster), and at the other extreme of the distribution, the largest gaps are found among the so-called fossil systems. The observed distribution of magnitude gaps is thought to be a consequence of the orbital decay of M∗ galaxies in massive halos and the associated growth of the central object. As a result, to first order the amplitude of this gap is a good statistical proxy for the dynamical age of a system of galaxies. Fossil and non-fossil systems could therefore have different galaxy populations that should be reflected in their luminosity functions.
Publication date
PublisherEDP Sciences
LanguageEnglish
AffiliationNational Science Infrastructure; National Research Council Canada
Peer reviewedYes
NPARC number23001089
Export citationExport as RIS
Report a correctionReport a correction
Record identifierab93039f-465d-4a60-b1a0-e8b2d8a4638d
Record created2016-12-12
Record modified2016-12-12
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)