Multifrequency VLA observations of GHz-peaked-spectrum radio cores

Details Multifrequency VLA observations of GHz-peaked-spectrum radio cores Multifrequency VLA observations of GHz-peaked-spectrum radio cores

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26as...84..549o&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 84, no. 3, Sept. 1990, p. 549-562.

Astronomy and Astrophysics

Astrophysics

44

Active Galactic Nuclei, Extragalactic Radio Sources, Radio Galaxies, Radio Spectra, Very Large Array (Vla), Faraday Effect, Optical Thickness, Polarization Characteristics, Quasars

Scientific paper

Simultaneous, multifrequency VLA observations, obtained on December 30, 1984, of the cores of 18 possible GHz peaked spectrum (PS) sources are presented and analyzed. The positions of the sources, flux densities and spectral indices of the cores, the fractional polarization and polarization position angle of the cores, bandwidth depolarization of the sources, and Faraday rotation measurements for the sources are calculated and studied. It is determined that 15 of the sources are true GHzPS sources with spectral peaks between 0.8-6 GHz and the other three are variable.

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