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Hot Gas in Groups and Their Galaxies

Published online by Cambridge University Press:  25 May 2016

Trevor J. Ponman  and
Alexis Finoguenov
Trevor J. Ponman
Affiliation:
School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
Alexis Finoguenov
Affiliation:
Space Research Institute, Profsoyuznaya 84/32, 117810 Moscow, Russia

Extract

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It is clear that there is an important interplay between galaxies and the group environment. At the velocity dispersions (~ 100 km s−1) characteristic of groups, the galaxies interact strongly, leading to triggering of star formation, and galaxy merging. We can expect to see evidence of such processes through differences in the properties of galaxies in groups compared to field galaxies. Conversely, the galaxies affect their environment, as is apparent from the presence of heavy elements in the hot intergalactic medium (IGM) in groups, which emit characteristic X-ray lines.

Type
Session 1: Plasma and Fresh Nucleosynthesis Phenomena
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 61 - 64
Copyright
Copyright © Kluwer 1998 

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