NDLI: Kinematics and Dynamics of Galaxies in Compact Groups for a sample of 31 groups

Content Provider	Springer Nature Link
Author	Amram, P. Mendes de Oliveira, C. Plana, H. Balkowski, C. Boulesteix, J. Carignan, C.
Copyright Year	2002
Abstract	A long-term program based on Fabry-Perot Hα velocity field data of compact groups has been undertaken in order to analyse the kinematics of the compact group galaxies and the extent of their dark halos. The data are taken at the ESO and the CFH 3.6 m telescopes. The main goals of our project are: • To determine the evolutionary stages of the studied groups, • To search for tidal dwarf galaxy candidates in heavily interacting systems and • in combination with photometry available in the literature, to determine the Tully-Fisher relation for the group galaxies. The sample contains examples of groups at a variety of dynamical stages: from a false group that is in fact one single irregular galaxy with several star-forming blobs (e.g. H18) to a group whose members are strongly interacting and possibly forming tidal dwarf galaxies (e.g. H92) to a group in the final process of merging. We have so far identified five HCG classes: 1. merging groups2. strongly interacting, 3. weakly interacting, 4. non-groups, 5. single irregular galaxies. The ones which can be used in the TF studies are those in classes (2) and (3), for which comprehensive rotation curves can be derived.
Starting Page	389
Ending Page	392
Page Count	4
File Format	PDF
ISSN	0004640X
Journal	Astrophysics and Space Science
Volume Number	281
Issue Number	1-2
e-ISSN	1572946X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2002-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astronomy
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

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