Observations of ten extragalactic radio sources with very steep spectra.
Abstract
The Half-Mile telescope at the Mullard Radio Astronomy Observatory has been used at 1421 MHz to map ten sources which have very steep radio spectra. Of the seven sources which are coincident with clusters of galaxies, only one shows evidence for the steep spectrum being associated with a halo. The curvature noted in the spectra of two of these sources is interpreted as being due to synchrotron losses, following the withdrawal of the energv input in the form of relativistic electrons.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- January 1974
- DOI:
- 10.1093/mnras/166.1.101
- Bibcode:
- 1974MNRAS.166..101S