The bivariate diameter-magnitude function of galaxies in the ESO-LV catalogue

Details The bivariate diameter-magnitude function of galaxies in the ESO-LV catalogue The bivariate diameter-magnitude function of galaxies in the ESO-LV catalogue

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.260..285s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 260, no. 2, p. 285-298.

Mathematics

Logic

34

Astronomical Catalogs, Bivariate Analysis, Distribution Functions, Galactic Structure, Maximum Likelihood Estimates, Southern Sky, Diameters, Luminous Intensity, Magnitude, Morphology

Scientific paper

We investigate the joint distribution of magnitudes and diameters of galaxies, the bivariate diameter-magnitude distribution function, using parametric and nonparametric maximum-likelihood methods. A diameter- and magnitude-limited sample is extracted from the ESO-LV catalogue and is fitted by a bivariate function. The maximum-likelihood estimates of the parameters of the bivariate function for a sample consisting of 529 galaxies of all morphological types are D* = 2260 +/- 97 km/s arcmin, A = -4.85 +/- 0.12, B = -0.34 +/- 0.44, and sigmaM = 0.668 +/- 0.024. We compare the diameter and luminosity functions derived from the bivariate function with earlier studies.

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