The angular correlation function of faint galaxies

Details The angular correlation function of faint galaxies The angular correlation function of faint galaxies

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....91....1p&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 91, Jan. 1986, p. 1-5. NSERC-supported research.

Astronomy and Astrophysics

Astronomy

19

Angular Correlation, Galactic Clusters, Galaxies, Magnitude, Angular Distribution, Galactic Evolution

Scientific paper

The angular correlation function of faint galaxies has been measured down to a limiting magnitude of J = 23.5 in a 0.55 deg2 area near the South Galactic Pole. This function follows a power law with exponent 0.7 - 0.8 for J < 22.5; at fainter magnitudes there is evidence for a flattening in the power-law slope, in agreement with the observations of Koo and Szalay. The authors' correlation amplitudes are in reasonable agreement with those of Koo and Szalay at J < 22.5, but are a factor of ≡2 larger at J = 23.5. If real, this result favors models with a lower level of galaxy evolution; however, this conclusion appears to be weakened by the observation that differences in Aω among different groups are correlated with systematic differences in galaxy number counts.

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