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Distribution of Maximal Luminosity of Galaxies in the Sloan Digital Sky Survey

Published online by Cambridge University Press:  01 July 2015

E. Regős ,
A. Szalay ,
Z. Rácz ,
M. Taghizadeh  and
K. Ozogany
E. Regős
Affiliation:
CERN (Geneva)
A. Szalay
Affiliation:
CERN (Geneva)
Z. Rácz
Affiliation:
CERN (Geneva)
M. Taghizadeh
Affiliation:
CERN (Geneva)
K. Ozogany
Affiliation:
CERN (Geneva)
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Abstract

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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.

Keywords

Galaxies: formationGalaxies: luminosity functionCosmology: large-scale structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Symposium S306: Statistical Challenges in 21st Century Cosmology , May 2014 , pp. 351 - 354
Copyright
Copyright © International Astronomical Union 2015 

References

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