Radio, millimeter-submillimeter, and infrared spectra of flat-spectrum extragalactic radio sources

Bloom, Steven D., Marscher, Alan P., Gear, Walter Kieran ORCID: https://orcid.org/0000-0001-6789-6196, Terasranta, Harri, Valtaoja, Esko, Aller, Hugh D. and Aller, Margo F. 1994. Radio, millimeter-submillimeter, and infrared spectra of flat-spectrum extragalactic radio sources. Astronomical Journal 108 , pp. 398-404. 10.1086/117078

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Abstract

We present radio to submillimeter-wave continuum spectra of 44 bright, compact extragalactic radio sources with flat spectra at centimeter wavelengths ('blazars'). Infrared J, H, and K flux densities are added to the spectra of six of these objects. These spectra are useful in comparisons of x-ray and gamma-ray measurements with the multiwaveband properties of blazars. A number of the objects have been detected as strong, hard gamma-ray sources by the Compton Gamma Ray Observatory (CGRO). The millimeter-wave spectra of the gamma-ray bright blazars we observe are flatter on average than for the sample as a whole.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	Extragalactic Radio Sources, Gamma Ray Astronomy, Gamma Ray Observatory, Radio Spectra, Centimeter Waves, Millimeter Waves, Radio Emission
Publisher:	Institute of Physics Science
ISSN:	0004-6256
Last Modified:	21 Oct 2022 09:21
URI:	https://orca.cardiff.ac.uk/id/eprint/36067

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