The Luminosity Function of Elliptical Galaxies

Details The Luminosity Function of Elliptical Galaxies The Luminosity Function of Elliptical Galaxies

Sep 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....110.1032m&link_type=abstract

Astronomical Journal v.110, p.1032

Astronomy and Astrophysics

Astronomy

12

Galaxies: Elliptical And Lenticular, Galaxies: Luminosity Function, Galaxies: Distances And Redshifts

Scientific paper

We present 292 new redshifts of elliptical galaxies selected from the APM Bright Galaxy Survey. We use these data together with published redshifts and bJ apparent magnitudes from the APM Bright Galaxy Survey in order to estimate the shape of the Luminosity Function of a total sample of 535 ellipticals. We use the Maximum Likelihood method for the determination of the best fitting parameters α and M* of a Schechter Function. In order to provide tests for systematics and suitable error estimates we apply Monte Carlo techniques which are also used to deal with incompleteness effects in the data. In agreement with other authors our results indicate a relative lack of low luminosity ellipticals compared to other morphological types. The best fitting shape parameters derived are α=0.20±0.2S and MBJ*=-20.0±0.3. We do not find evidence for a dependence of these parameters on environment

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