Collisional removal of H I from the inner disks of Virgo Cluster galaxies

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/168927· OSTI ID:6596809

Valluri, M; Jog, C J ^[1]

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1. Indian Institute of Science, Bangalore (India)

There is sufficient observational evidence to show that many Virgo Cluster spirals are H I deficient in their inner disks (in addition to being H I deficient globally, as previously established). It is shown here that collisions between galaxies in a cluster can lead to the removal of H I gas from these galaxies while leaving the H2 gas, undisturbed. This follows directly from the application of the Spitzer-Baade collisional gas removal mechanism to galaxies consisting of stars and a two-component ISM consisting of H I and H2, with H I having the largest filling factor. This can account for both the observed H I deficiency in the inner regions and the normal H2 content of these galaxies. The frequency of galaxy collisions in the Virgo Cluster is shown to be large enough to make collisional gas removal a viable mechanism. 46 refs.

• OSTI ID: 6596809
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 357; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BASIC INTERACTIONS
CHEMICAL COMPOSITION
CONFIGURATION
COSMIC GASES
COSMIC RADIO SOURCES
ELEMENTS
FLUIDS
GALAXIES
GALAXY CLUSTERS
GASES
GRAVITATIONAL INTERACTIONS
H1 REGIONS
HYDROGEN
INTERACTIONS
INTERSTELLAR SPACE
NONMETALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
REMOVAL
SPACE
SPIRAL CONFIGURATION