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Issue A&A Volume 402, Number 3, May II 2003 First Science with the ODIN satellite Page(s) 865 - 877 Section Galactic structure and dynamics DOI 10.1051/0004-6361:20030034

A&A 402, 865-877 (2003)
DOI: 10.1051/0004-6361:20030034

Gas kinematics of a sample of five Hickson Compact Groups

The data

P. Amram¹, H. Plana², C. Mendes de Oliveira³, C. Balkowski⁴ and J. Boulesteix<sup>1

1</sup>  Observatoire Astronomique Marseille-Provence & Laboratoire d'Astrophysique de Marseille, 2 place Le Verrier, 13248 Marseille Cedex 04, France
²  Observatorio Nacional MCT, Rua General Jose Cristino 77, São Cristóvão, 20921-400 Rio de Janeiro, RJ, Brazil
³  Universidade de São Paulo, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Departamento de Astronomia, Rua do Matão 1226, Cidade Universitária, 05508-900, São Paulo, SP, Brazil
⁴  Observatoire de Paris, GEPI, CNRS and Université Paris 7, 5 place Jules Janssen, 92195 Meudon Cedex, France

(Received 9 October 2002 / Accepted 19 December 2002)

Abstract
We present Fabry Perot observations of galaxies in five Hickson Compact Groups: HCG 10, HCG 19, HCG 87, HCG 91 and HCG 96. We observed a total of 15 galaxies and we have detected ionized gas for 13 of them. We were able to derive 2D velocity, monochromatic, continuum maps and rotation curves for the 13 objects. Almost all galaxies in this study are late-type systems; only HCG 19a is an elliptical galaxy. We can see a trend of kinematic evolution within a group and among different groups - from strongly interacting systems to galaxies with no signs of interaction - HCG 10 exhibits at least one galaxy strongly disturbed; HCG 19 seems to be quite evolved; HCG 87 does not show any sign of merging but a possible gas exchange between two galaxies; HCG 91 could be accreting a new intruder; HCG 96 exhibits past and present interactions.

Key words: galaxies: kinematics and dynamics -- galaxies: evolution -- galaxies: interactions -- galaxies: ISM -- galaxies: formation -- galaxies: intergalactic medium

Offprint request: P. Amram, Philippe.Amram@oamp.fr

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