Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...264...14s&link_type=abstract
Astrophysical Journal, Part 1, vol. 264, Jan. 1, 1983, p. 14-23.
Astronomy and Astrophysics
Astronomy
27
Galactic Radio Waves, Interacting Galaxies, Intergalactic Media, Radio Sources (Astronomy), Virgo Galactic Cluster, Centimeter Waves, Disk Galaxies, Hydrogen, Line Spectra
Scientific paper
Previously published 21 cm data and optical emission line fluxes from a new nuclear spectroscopic survey for disk galaxies in Virgo are examined for possible evidence of galaxy-intergalactic medium (IGM) interaction. The H I-color correlation diagram for Virgo spirals shows that most of the H I deficient Virgo spirals have integral colors appropriate for their H I content; that is, they are quite red. However, a few of those spirals are relatively blue, and they may be good candidates for recently "stripped" spirals. By contrast, the data from the nuclear spectroscopic survey of Virgo appear to show no difference between the emission line strengths for the Virgo galaxies and the field sample. Therefore, the mechanism that is responsible for producing disk H I deficiency is more efficient at removing neutral gas from the disks of galaxies than ionized gas from galaxy nuclei.
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