Morphological classification and structural parameters of galaxies in the Coma and Perseus clusters

Free access article

Issue		Astron. Astrophys. Suppl. Ser. Volume 126, Number 1, November_II 1997


Page(s)		67 - 72
DOI		http://dx.doi.org/10.1051/aas:1997249

DOI: 10.1051/aas:1997249

A&A Supplement Series, Vol. 126, November II 1997, 67-72

Received November 7, 1996; accepted February 11, 1997

Morphological classification and structural parameters of galaxies in the Coma and Perseus clusters

S. Andreon, E. Davoust, - P. Poulain

Osservatorio Astronomico di Capodimonte, via Moiariello 16, 80131 Napoli, Italy

e-mail: andreon@cerere.na.astro.it

CNRS-UMR 5572, Observatoire Midi-Pyrénées, 14, Av. E. Belin, 31400 Toulouse, France
e-mail: davoust, poulain@obs-mip.fr

Abstract:

We present the results of an isophotal shape analysis of galaxies in the Coma and Perseus clusters. These data, together with those of two previous papers, provide two complete samples of galaxies with reliable Hubble types in rich clusters:

1) all galaxies brighter than falling within one degree (=2.3 Mpc) from the center of the Coma cluster (187 galaxies),

2) all galaxies brighter than in a region of around the center of the Perseus cluster (139 galaxies).

These two complete samples cover 5 orders of magnitude in galaxy density and span areas of 91 and 17 Mpc², clustercentric radii up to 6.4 and 2.3 Mpc, for Perseus and Coma respectively. They will be used in subsequent papers to study the dependence of galaxy types on cluster environment and as reference samples in comparisons with distant clusters.

keywords: galaxies: clusters: individual: Coma (Abell
1656) -- individual: Perseus (Abell 426) -- Galaxies: elliptical and lenticular, cD -- galaxies: fundamental parameters

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