22- and 44-GHz continuum observations of extragalactic radio sources.
Abstract
22- and 44-GHz flux densities of a sample of extragalactic radio sources with expected flux densities larger than 1 Jy at 22 GHz were measured with the Itapetinga radio telescope during the period July 1978 - October 1980. For most of the sources, the flux densities at these frequencies, together with published values at other frequencies, combine to form smooth spectra, even when the measurements were made at different epochs. For two of the sources (0906+01 and 1546+02), the authors found that the flat spectra between 1 and 100 GHz had changed into a peaked one, with maximum intensity probably around 15 GHz.
- Publication:
-
The Astronomical Journal
- Pub Date:
- February 1984
- DOI:
- 10.1086/113502
- Bibcode:
- 1984AJ.....89..200A
- Keywords:
-
- Astronomical Spectroscopy;
- Extragalactic Radio Sources;
- High Frequencies;
- Radiant Flux Density;
- Spectral Energy Distribution;
- Spectrum Analysis;
- Astronomy