Cross-correlation analysis of the large-scale distribution of galaxies with different luminosities

Details Cross-correlation analysis of the large-scale distribution of galaxies with different luminosities Cross-correlation analysis of the large-scale distribution of galaxies with different luminosities

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990cha%26a..14..241x&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 14, Issue 3, p. 241-247.

Astronomy and Astrophysics

Astrophysics

Galaxy-Large Scale Structure-Cosmology

Scientific paper

A cross-correlation analysis between galaxies of different luminosities in the CfA survey has been made. The results show that the cross-correlation can be approximated by a power law, which indicates that galaxies with different luminosities are mixed in their distribution and clustering. On smaller scales (4-6 Mpc) galaxies with higher luminosities are strongly correlated to one another; as the scale increases, this cross correlation decreases rapidly. This means that the more luminous galaxies form more compact clusters and groups than do the less luminous ones; thus, the luminosity of galaxies is related to the environment. This is a support for the idea of biased galaxy formation.

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