Central radio sources in spiral galaxies: Starburst or accretion

Details Central radio sources in spiral galaxies: Starburst or accretion Central radio sources in spiral galaxies: Starburst or accretion

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...134..207h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 134, no. 2, May 1984, p. 207-221. Research supported by the University of New

Astronomy and Astrophysics

Astrophysics

107

Galactic Nuclei, Galactic Radio Waves, Galactic Structure, Radio Galaxies, Spiral Galaxies, Starburst Galaxies, Supernovae, Accretion Disks, Astronomical Models, Centimeter Waves, Elliptical Galaxies, Radio Spectra

Scientific paper

The mechanism of radio emission from the central 1-kpc-radius regions of galaxies is investigated on the basis of 20-min 2, 6 and 20-cm observations obtained with the VLA during March 1981, for 16 galaxies. The data are presented in tables, maps, and graphs and compared with published data on a larger sample. The individual galaxies are characterized in detail, and the radio morphology of the sample is discussed in terms of accretion and starburst models. The central sources are found to consist of combinations of three component types: flat-spectrum compact core sources typical of bulge-dominated and elliptical galaxies, 10-100-pc nuclear sources occurring in spiral galaxies, and extranuclear components of various shapes. The 6-cm temperatures of the components are given as greater than 100,000 K, 100-10,000 K, and less than 1000 K, respectively. While most extranuclear-component emission is consistent with current starburst models, major revisions are required to explain the nuclear sources, and more exotic nonstarburst models are needed for the core sources.

Affiliated with

Also associated with

No associations

Rating

Central radio sources in spiral galaxies: Starburst or accretion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Central radio sources in spiral galaxies: Starburst or accretion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Central radio sources in spiral galaxies: Starburst or accretion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1367430