Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...209....1b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 209, no. 1-2, Jan. 1989, p. 1-7.
Astronomy and Astrophysics
Astrophysics
14
Cosmology, Galactic Evolution, Luminosity, Autocorrelation, Cross Correlation, Gravitational Collapse, Red Shift
Scientific paper
An analysis is carried out of the two-point spatial correlation function for galaxies with different luminosities. Galaxies from the CfA redshift survey are divided into subsamples in absolute magnitude intervals ranging from - 18.5 to - 22.5. The pair autocorrelation and cross-correlation functions exhibit significant differences. The functions still can be fitted to a power law quite well, but different luminosity intervals yield different correlation strengths. There is also a (weaker) indication of different slopes of log zeta vs. r for different luminosity intervals. Generally, it is found that the brighter galaxies have a larger correlation strength and a steeper slope. Implications for scenarios of galaxy formation are pointed out.
Boerner Gerhard
Deng Zu-Gang
Xia Xiao-Yang
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