An estimate of the galaxy covariance function at small scales and low luminosities

Details An estimate of the galaxy covariance function at small scales and low luminosities An estimate of the galaxy covariance function at small scales and low luminosities

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...238l..13l&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 238, May 15, 1980, p. L13-L16.

Astronomy and Astrophysics

Astrophysics

31

Covariance, Error Analysis, Luminous Intensity, Red Shift, Spiral Galaxies, Astronomical Models, Cosmology, Galactic Radiation

Scientific paper

The shape of the galaxy covariance function (CF) at small scales and its normalization are determined by the use of ring counts of companions around bright galaxies of known redshift and Holmberg's (1969) data. It is found that the spatial CF between 5/h kpc and 40/h kpc can be fitted by a power law with slope equal to 1.5. The mean systematic errors in the technique are discussed, and it is suggested that the CF is approximately independent of luminosity.

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