Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88..260k&link_type=abstract
Astronomical Journal, vol. 88, Mar. 1983, p. 260-266.
Astronomy and Astrophysics
Astronomy
33
Astronomical Maps, Elliptical Galaxies, Galactic Structure, Hydrogen Clouds, Interstellar Gas, Supernovae, Astronomical Spectroscopy, Emission Spectra, H Lines, Neutral Gases, Velocity Distribution, Virgo Galactic Cluster
Scientific paper
Thirteen elliptical and SO galaxies in the Virgo and Pegasus I clusters have been mapped over their optical extent in the 21-cm neutral hydrogen line with the 305-m Arecibo telescope. No neutral hydrogen was detected in any of the galaxies, including NGC 4636, which had previously been reported as containing H I. New upper limits to the H I content of these galaxies (∼5 × l07 Msun in Virgo) are presented. We discuss their implications for the origin of type I supernovae and the mechanisms for gas removal from elliptical galaxies.
Krishna Kumar C.
Thonnard N. .
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