The Coma cluster luminosity function

• Type: Article in International Scientific Journal
• Date: 1996

Authors

Biviano, A (Author) Other; Durret, F (Author) Other; Gerbal, D (Author) Other; LeFevre, O (Author) Other; Lobo, C (Author) Other; Mazure, A (Author) Other; Slezak, E (Author) Other

Journal

Title: ASTROPHYSICAL LETTERS & COMMUNICATIONS

Vol. 33

Pages: 223-229

ISSN: 0888-6512

Publisher: Gordon & Breach Science Publishers

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-001-F07

Abstract (EN): Based on a new spectroscopic sample (nearly) complete to a magnitude b(26.5)=18.0, we have derived the luminosity function for the central region of the Coma cluster. We find that a single Schechter function does not provide a good fit to the magnitude distribution up to b(26.5)=20.0, and a superposition of a Gaussian and a Schechter function is required. A possible interpretation of this result is the existence of two different populations of early-type galaxies in the cluster, one of them being affected by evolutionary processes specific to the cluster environment. This interpretation will be tested on our new photometric sample of Coma duster galaxies, which is complete to a magnitude V similar or equal to 22.

Language: English

Type (Professor's evaluation): Scientific