Are symmetric radio spectra of some GPS/HFP sources related to a statistical acceleration mechanism?
Abstract
We present the results of a new spectral analysis of a sample of HFPs. We took from literature simultaneous radio measurements at various epochs and studied the symmetry of flux distribution around the peak frequency by means of a log-parabolic fit. We found that a large fraction of spectra are symmetric and propose that this property may be a consequence of statistical acceleration.
- Publication:
-
Astronomische Nachrichten
- Pub Date:
- February 2009
- DOI:
- 10.1002/asna.200811179
- Bibcode:
- 2009AN....330..295M
- Keywords:
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- galaxies: active;
- quasars: general;
- radio continuum: galaxies