Hot Gas Halos in Galaxies

Journal Article · Tue Jun 08 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3458470· OSTI ID:21366930

Mulchaey, John S ^[1]; Jeltema, Tesla E ^[2]

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1. Carnegie Observatories (United States)
2. UCO/Lick Observatories (United States)

We use Chandra and XMM-Newton to study how the hot gas content in early-type galaxies varies with environment. We find that the L{sub X}-L{sub K} relationship is steeper for field galaxies than for comparable galaxies in groups and clusters. This suggests that internal processes such as supernovae driven winds or AGN feedback may expel hot gas from low mass field galaxies. Such mechanisms are less effective in groups and clusters where the presence of an intragroup or intracluster medium may confine outflowing material.

• OSTI ID: 21366930
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1240; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
BINARY STARS
ERUPTIVE VARIABLE STARS
GALAXIES
GALAXY CLUSTERS
MASS
STARS
STELLAR ACTIVITY
STELLAR WINDS
SUPERNOVAE
TELESCOPES
VARIABLE STARS