Gaseous halos: Implications for cluster, galaxy, and radio-source evolution

Journal Article · Mon Oct 01 04:00:00 EDT 1979 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183064· OSTI ID:5700237

Norman, C; Silk, J

Substantial amounts of enriched gas produced during the early stages of galactic evolution can be stably contained within massive extended halos and released into the intracluster medium by galaxy collisions at a relatively late epoch. If most of the intracluster gas in rich clusters originates in this manner, the onset of ram-pressure stripping can be delayed until z< or approx. =0.5. Prior to this, such clusters contain many spiral and gas-rich elliptical galaxies, thereby accounting for the unusually large proportion of blue galaxies found in distant clusters. Implications are drawn for X-ray observations of rich clusters, and for the morphology of extended extragalactic radio sources.

• Research Organization: Huygens Laboratroy, University of Leiden
• OSTI ID: 5700237
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 233:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics &amp; Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GASES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FLUIDS
GALACTIC EVOLUTION
GALAXIES
GALAXY CLUSTERS
GASES
INTERGALACTIC SPACE
IONIZING RADIATIONS
RADIATIONS
SPACE
SUPERNOVA REMNANTS
X RADIATION