Polarization properties of radio cores in active galaxies

Details Polarization properties of radio cores in active galaxies Polarization properties of radio cores in active galaxies

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.224..379s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 224, Jan. 15, 1987, p. 379-391.

Astronomy and Astrophysics

Astronomy

38

Active Galaxies, Astronomical Spectroscopy, Extragalactic Radio Sources, Galactic Nuclei, Polarization Characteristics, Quasars, Centimeter Waves, Luminosity, Spectral Energy Distribution, Visible Spectrum

Scientific paper

To investigate the polarization properties of cores in both lobe-dominated and core-dominated radio sources associated with active galaxies, VLA A-array observations of core polarization at 6 cm of 10 lobe-dominated quasars, and new optical identification data for 33 compact radio sources observed by Perley (1982) with the VLA, are presented. The entire Perley sample of about 400 sources observed by Perley (1982) with the VLA, are presented. The entire Perley sample of about 400 sources is then used to examine the distributions of the two-point core spectral index between 20 and 6 cm, of the degree of polarization of these two frequencies, and of the depolarization parameter between these frequencies for both flat-spectrum cores (FSCs) and compact steep-spectrum sources (CSSs) associated with different kinds of optical objects. The FSCs in galaxies are significantly less polarized at both 6 and 20 cm than those in quasars. This is also true for the CSSs, although at 20 cm the difference in the median values is reduced. The CSSs in quasars exhibit significant evidence of depolarization towards longer wavelengths. The median degree of core polarization at 6 cm for the 10 lobe-dominated quasars is similar to that of the core-dominated quasars observed by Perley, suggesting that the cores in the two groups are not intrinsically different. The degree of polarization does not appear to be correlated with the core radio luminosity, contrary to a recent suggestion by Rudnick et al. (1986).

Affiliated with

Also associated with

No associations

Rating

Polarization properties of radio cores in active galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Polarization properties of radio cores in active galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarization properties of radio cores in active galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1624034