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Interstellar matter in early-type galaxies. III - Radio emission and star formationThe relationship between the IR and radio luminosity in early-type galaxies is examined using the correlation among spiral galaxies as a diagnostic of the presence of star formation. For ellipticals, the presence of long-wavelength IR emission enhances the probability that the galaxy is a radio source and is also correlated with the strength of that source. These findings are consistent with the idea that active radio nuclei are due to black holes being fueled by accretion of gas. The majority of S0s detected in both radio and far-IR have a similar ratio of IR to radio luminosity as has been found in spirals, and which is considered to be indicative of recent star formation. Sensitive radio limits for several galaxies reveal another substantial population of S0s with moderately strong IR emission unaccompanied by radio power.
Document ID
19890039521
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Walsh, D. E. P.
(Princeton Univ. Observatory NJ, United States)
Knapp, G. R.
(Princeton University Observatory, NJ, United States)
Wrobel, J. M.
(New Mexico Institute of Mining and Technology Socorro, United States)
Kim, D.-W.
(California, University Los Angeles, United States)
Date Acquired
August 14, 2013
Publication Date
February 1, 1989
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 337
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
89A26892
Funding Number(s)
CONTRACT_GRANT: NSF AST-86-11247
CONTRACT_GRANT: NSF AST-86-02698
Distribution Limits
Public
Copyright
Other

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