Variations in the circular polarization of 3C 84 and 3C 273 at 8 GHz.
Abstract
Observations at 8 GHz over a two-year period show significant variations in the circular polarization of 3C 84 and 3C 273. The degree of circular polarization indicates a magnetic-field strength which is consistent with VLBI specific-intensity observations, but the agreement may be coincidental, at least in the case of 3C 273. The present observations imply that linear-to-circular conversion is responsible for the circular polarization of 3C 273.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- February 1977
- DOI:
- 10.1086/154976
- Bibcode:
- 1977ApJ...211..669H
- Keywords:
-
- Circular Polarization;
- Quasars;
- Radio Sources (Astronomy);
- Calibrating;
- Dicke Radiometers;
- Field Strength;
- Magnetic Fields;
- Optical Thickness;
- Time Response;
- Astronomy