Distribution of maximal luminosity of galaxies in the sloan digital sky survey

E. Regaos, A. Szalay, Z. Rácz, M. Taghizadeh, K. Ozogany

Research output: Contribution to journalArticle

Abstract

Extreme value statistics (EVS) is applied to the pixelized distribution of galaxy luminosities in the Sloan Digital Sky Survey (SDSS). We analyze the DR8 Main Galaxy Sample (MGS) as well as the Luminous Red Galaxy Sample (LRGS). A non-parametric comparison of the EVS of the luminosities with the Fisher-Tippett-Gumbel distribution (limit distribution for independent variables distributed by the Press-Schechter law) indicates a good agreement provided uncertainties arising both from the finite size of the samples and from the sample size distribution are accounted for. This effectively rules out the possibility of having a finite maximum cutoff luminosity.

Original languageEnglish
Pages (from-to)351-354
Number of pages4
JournalProceedings of the International Astronomical Union
Volume10
DOIs
Publication statusPublished - 2015

Keywords

  • Cosmology: large-scale structure
  • Galaxies: formation
  • Galaxies: luminosity function

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

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