Interstellar matter in early-type galaxies. III. Radio emission and star formation

Journal Article · Wed Feb 01 04:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167098· OSTI ID:6141897

Walsh, D E.P.; Knapp, G R; Wrobel, J M; Kim, D W

The 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. 37 references.

• Research Organization: Princeton Univ., NJ (USA). Observatory; Princeton Univ. Observatory, NJ (USA); New Mexico Institute of Mining and Technology, Socorro (USA); California, Univ., Los Angeles (USA)
• OSTI ID: 6141897
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 337; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BLACK HOLES
CONFIGURATION
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
ELLIPTICAL CONFIGURATION
FAR INFRARED RADIATION
GALAXIES
GALAXY NUCLEI
INFRARED RADIATION
INTERSTELLAR SPACE
LIMITING VALUES
MORPHOLOGY
RADIATIONS
RADIO GALAXIES
RADIOWAVE RADIATION
SPACE
SPIRAL CONFIGURATION
STAR ACCRETION
STAR EVOLUTION