Neutral Hydrogen in Lenticular Galaxies with Faint Discs

Details Neutral Hydrogen in Lenticular Galaxies with Faint Discs Neutral Hydrogen in Lenticular Galaxies with Faint Discs

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.196..175h&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 196, P. 175, 1981

Mathematics

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18

Scientific paper

Ten S0 galaxies with very faint discs but normal (bright) central regions were selected from deep IIIaJ plates taken for the ESO/SRC Southern Sky Survey. Radio 21-cm line observations showed that two of these have large amounts of H I gas, with MH/LB ≳ 0.5 solar units. The most hydrogen-rich galaxy in the sample, UKS 0016-579, has MH/LB = 2.7Msun/Lsun. Combined with the results from other surveys of catalogued SO galaxies, these observations indicate that excess H I occurs preferentially in lenticulars with relatively faint discs. These H I-rich systems form a distinct morphological group.

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