Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.234p..51n&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 234, Sept. 15, 1988, p. 51P-55P.
Astronomy and Astrophysics
Astronomy
15
Far Infrared Radiation, Galactic Nuclei, Infrared Astronomy, Radio Galaxies, Starburst Galaxies, Stellar Cores, Quasars, Red Shift, Seyfert Galaxies, Stellar Luminosity
Scientific paper
The origin of the enormous total luminosity of ELFs (extremely luminous far-infrared galaxies) is the subject of considerable debate, and both Seyfert nuclei and starburst activity have been suggested. The 275-km Parkes-Tidbinbilla Interferometer is used to search for compact radio cores in a sample of galaxies, including Seyferts, starbursts, and ELFs. About one quarter of the Seyferts, but very few of the starburst galaxies, were detected. Several of the ELFs were detected, implying that they contain a compact Seyfert-like core. However, all of those detected show optical evidence for Seyfert activity, whereas most of those which were not detected show no such evidence. It is concluded that Arp220-type obscured Seyferts appear to be rare among the ELFs, and that most ELFs are powered by starburst activity without significant Seyfert activity. The detection of an obscured radio-loud quasar or radio galaxy is also reported.
Allen David A.
Kesteven Michael J.
Norris Ray P.
Troupe E.
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