Millimeter and submillimeter observations of nearby radio galaxies

Details Millimeter and submillimeter observations of nearby radio galaxies Millimeter and submillimeter observations of nearby radio galaxies

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....101.1609k&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 101, May 1991, p. 1609-1622. University of Hawaii-supported research.

Astronomy and Astrophysics

Astronomy

58

Infrared Sources (Astronomy), Millimeter Waves, Radio Astronomy, Radio Galaxies, Astronomical Spectroscopy, Bl Lacertae Objects, Emission Spectra, Interstellar Matter, Spectral Energy Distribution

Scientific paper

Radio galaxies are often observed to be strong long wavelength infrared sources. Twenty-six radio galaxies with strong compact cores were observed at wavelengths near 1 mm with the James Clerk Maxwell Telescope on Mauna Kea, Hawaii. The detections and upper limits establish the presence of excess infrared emission for almost all of the galaxies in the sample. The exceptions are the BL Lac objects, which have smooth continuous spectra from radio to infrared wavelengths. The spectral energy distributions of the infrared emission from the radio galaxies favor a thermal origin due to emission from cool interstellar dust. The amounts of dust inferred to be present approach those observed in large spirals.

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