Radio properties of galaxies with high far-infrared luminosities

Journal Article · Sun May 01 04:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166311· OSTI ID:7023724

Eales, S A; Wynn-Williams, C G; Beichman, C A

Observations have been made with the Very Large Array, mainly at 5 GHz, of a sample of galaxies with high far-infrared luminosities selected from the Infrared Astronomical Satellite (IRAS) minisurvey. The surface brightnesses of the minisurvey sources are greater than those of the disks of normal galaxies but are similar to those of the central radio sources in these galaxies; the minisurvey sources, however, have much larger luminosities and physical sizes than these central sources. On the basis of the available data at all wavelengths, it is concluded that the far-infrared and radio emission from the minisurvey galaxies is caused by star formation, not by active nuclei. It is found that the size of the radio source is inversely correlated with the 60-100 micron color temperature but is independent of the far-infrared luminosity. 43 references.

• Research Organization: Hawaii Univ., Honolulu (USA); California Institute of Technology, Pasadena (USA)
• OSTI ID: 7023724
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 328; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BREMSSTRAHLUNG
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FAR INFRARED RADIATION
GALAXIES
GALAXY NUCLEI
INFRARED RADIATION
RADIATIONS
RADIO GALAXIES
RADIOWAVE RADIATION
STAR EVOLUTION
SYNCHROTRON RADIATION