The spectral index distribution of Cygnus A
Abstract
High dynamic range maps of Cygnus A at 2.7 and 5 GHz have been used to investigate the variation of spectral index over the extended parts of the source. Although both components show a steepening of spectral index away from the hotspots there is a marked asymmetry between the two components. This is interpreted as being due to a higher value of magnetic field in the Sf component.
- Publication:
-
Extragalactic Radio Sources
- Pub Date:
- 1982
- Bibcode:
- 1982IAUS...97...29S
- Keywords:
-
- Radio Sources (Astronomy);
- Spectral Energy Distribution;
- X Ray Sources;
- Cygnus Constellation;
- Radiant Flux Density;
- Radio Spectra;
- Spectrum Analysis;
- Astrophysics