Millimeter-wave observations of flat spectrum radio sources

Gear, Walter Kieran ORCID: https://orcid.org/0000-0001-6789-6196, Robson, E. I., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Smith, M. G., Clegg, P. E., Cunningham, C. T., Griffin, Matthew Joseph ORCID: https://orcid.org/0000-0002-0033-177X, Nolt, I. G. and Radostitz, J. V. 1984. Millimeter-wave observations of flat spectrum radio sources. Astrophysical Journal 280 , pp. 102-106. 10.1086/161972

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Abstract

Measurements at wavelengths between 0.4 and 2.0 mm of a sample of 26 compact, flat spectrum radio sources are presented. These observations extend the known radio spectra of this class of sources to higher frequencies and show that most of these sources are still flat at short millimeter wavelengths. The spectral shapes are consistent with an inhomogeneous synchrotron model (with some degree of relativistic beaming); however, the lack of concurrent multifrequency data prevents more definite conclusions at this stage.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	Astronomical spectroscopy ; Millimeter waves ; Radio sources (astronomy), Radio spectra ; Relativistic electron beams Synchrotron radiation ; Variability
Publisher:	American Astronomical Society
ISSN:	0004-637X
Last Modified:	18 Oct 2022 12:41
URI:	https://orca.cardiff.ac.uk/id/eprint/10926

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