H I observations of 40 S0 and elliptical galaxies

Details H I observations of 40 S0 and elliptical galaxies H I observations of 40 S0 and elliptical galaxies

Feb 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977aj.....82..106k&link_type=abstract

Astronomical Journal, vol. 82, Feb. 1977, p. 106-112.

Mathematics

Logic

36

Elliptical Galaxies, Galactic Evolution, Hydrogen Clouds, Early Stars, Interstellar Gas, Optical Measurement, Radial Velocity, Stellar Luminosity, Stellar Magnitude, Telescopes

Scientific paper

A sensitive search for H I emission from 40 early-type galaxies, including four ellipticals and 20 S0s, was made. Seven of the galaxies were positively detected, and three marginally. The presence of H I shows no dependence on apparent magnitude, color, or luminosity. Within a given morphological class, the H I content varies widely. Most of the S0s were not detected, but for those which were (and the detected Sas) the values of the ratio of H I magnitude to photographic luminosity are higher than mean values for later-type galaxies.

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