A& A Supplement series, Vol. 122, May I 1997, 409-414

Received June 29; accepted August 2, 1996

A photometric catalogue of the Coma cluster core

C. Lobo - A. Biviano - F. Durret - D. Gerbal - O. Le Fèvre - A. Mazure - E. Slezak

Send offprint request: C. Lobo, lobo@iap.fr

  Institut d'Astrophysique de Paris, CNRS, Université Pierre et Marie Curie, 98bis Bd Arago, F-75014 Paris, France
  Centro de Astrofísica da Universidade do Porto, Rua do Campo Alegre 823, P-4150 Porto, Portugal
  Istituto T.E.S.R.E., Area della Ricerca del CNR, via Gobetti 101, I-40129, Bologna, Italy
  ESA Villafranca Satellite Tracking Station, Apto. 50727, CAM IDT, E-28080 Madrid, Spain
  DAEC, Observatoire de Paris, Université Paris VII, CNRS (UA 173), F-92195 Meudon Cedex, France
  IGRAP, LAS, Traverse du Siphon, Les Trois Lucs, B.P. 8, F-13376 Marseille Cedex, France
  Observatoire de la Côte d'Azur, B.P. 229, F-06304 Nice Cedex 4, France

Abstract:

We have obtained a mosaic of CCD images of the Coma cluster in the V-band covering a region of approximately 0.4 degrees around both central cluster galaxies NGC 4889 and NGC 4874. An additional frame of was taken of the south-west region around NGC 4839. We derived a catalogue of 7023 galaxies and 4096 stars containing positions, central surface brightnesses and isophotal magnitudes. We estimate that data is complete up to and the surface brightness limiting detection value is .
In this paper we present the catalogue (available in electronic form alone), along with a detailed description of the steps concerning the data reduction and quality of the computed parameters.

keywords: galaxies: clusters: individual: Coma -- galaxies: photometry -- galaxies: luminosity function

 
• 1. Observations
• 2. Flat-field, bias subtraction and correction of MOS distortions
• 3. Detection of objects
• 4. Photometry
• 5. Astrometry
• 6. The catalogue
• References