H I gas near the giant elliptical galaxy NGC 4472

Details H I gas near the giant elliptical galaxy NGC 4472 H I gas near the giant elliptical galaxy NGC 4472

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...315l..39s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 315, April 1, 1987, p. L39-L42.

Astronomy and Astrophysics

Astrophysics

38

Dwarf Galaxies, Elliptical Galaxies, Extragalactic Radio Sources, Hydrogen Clouds, Intergalactic Media, Virgo Galactic Cluster, Accretion Disks, Irregular Galaxies

Scientific paper

H I gas has been found between a dwarf irregular and the giant elliptical galaxy NGC 4472 in the Virgo Cluster. The H I deficiency of the dwarf itself suggests that the H I seen has been removed from the dwarf by either tidal stripping or the sweeping effect of the hot gaseous halo, which is known from X-ray data to be surrounding the elliptical galaxy. Hence it is possible that, in NGC 4472, it is the actual process of accretion of gas into an elliptical galaxy that may be witnessed. The small double radio source in the center of NGC 4472 may be a related phenomenon.

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