Cosmological observations of galaxies - Number counts

Details Cosmological observations of galaxies - Number counts Cosmological observations of galaxies - Number counts

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.212..197s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 212, Jan. 1, 1985, p. 197-209. Research supported by th

Astronomy and Astrophysics

Astronomy

7

Cosmology, Distribution Functions, Elliptical Galaxies, Luminosity, Angular Resolution, Astronomical Models, Completeness, Diameters, Point Spread Functions

Scientific paper

A simple model of selection effects and the diameter-luminosity distribution of elliptical galaxies is used to investigate the effect of various parameters on optical number counts of galaxies. It is shown that in addition to knowledge of the detection limit, point-spread effects, and angular resolution limits, the number counts are significantly affected by the nature of the diameter-luminosity distribution of the galaxies.

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