SCG0018-4854: A young and dynamic compact group

Details SCG0018-4854: A young and dynamic compact group SCG0018-4854: A young and dynamic compact group

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009an....330..988p&link_type=abstract

Astronomische Nachrichten, Vol.330, Issue , p.988

Mathematics

Logic

Galaxies: Clusters: Individual (Scg 0018-4854), Galaxies: Interactions, Galaxies: Kinematics And Dynamics

Scientific paper

It is widely recognized in the literature that processes taking place within the group environment are among the main drivers of galaxy evolution. SCG0018-4854 is a compact group of galaxies located at a distance of v ˜ 3200 km s-1. It is composed of four galaxy members, very close to each other on the sky: their median projected distance is only ˜ 20 Kpc (H = 70 km s-1Mpc-1). The remarkably high local galaxy density coupled with the low velocity dispersion (˜ 100 km s-1) characterizing this group, makes SCG0018-4854 a test case to study in detail the interplay between the environment and the galaxy properties. We present here some of the properties of the group members that are related to their mutual interaction, as derived from our kinematical and morphological analysis.

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