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Interstellar matter in early-type galaxies. II - The relationship between gaseous components and galaxy typesInterstellar components of early-type galaxies are established by galactic type and luminosity in order to search for relationships between the different interstellar components and to test the predictions of theoretical models. Some of the data include observations of neutral hydrogen, carbon monoxide, and radio continuum emission. An alternative distance model which yields LX varies as LB sup 2.45, a relation which is in conflict with simple cooling flow models, is discussed. The dispersion of the X-ray luminosity about this regression line is unlikely to result from stripping. The striking lack of clear correlations between hot and cold interstellar components, taken together with their morphologies, suggests that the cold gas is a disk phenomenon while the hot gas is a bulge phenomenon, with little interaction between the two. The progression of galaxy type from E to Sa is not only a sequence of decreasing stellar bulge-to-disk ratio, but also of hot-to-cold-gas ratio.
Document ID
19920044683
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Bregman, Joel N.
(Michigan, University Ann Arbor, United States)
Hogg, David E.
(NASA Headquarters Washington, DC United States)
Roberts, Morton S.
(National Radio Astronomy Observatory Charlottesville, VA, United States)
Date Acquired
August 15, 2013
Publication Date
March 10, 1992
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 387
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
92A27307
Funding Number(s)
CONTRACT_GRANT: NAGW-2135
Distribution Limits
Public
Copyright
Other

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