Radio Properties of GPS and CSS Sources: Galaxies versus Quasars
| Autor: | Carlo Stanghellini |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Physics
Active galactic nucleus Radio galaxy Astrophysics::High Energy Astrophysical Phenomena Astronomy Astronomy and Astrophysics Quasar Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Galaxy X-shaped radio galaxy Space and Planetary Science OVV quasar Blazar Astrophysics::Galaxy Astrophysics Galaxy cluster |
| Zdroj: | Publications of the Astronomical Society of Australia. 20:118-122 |
| ISSN: | 1448-6083 1323-3580 |
| DOI: | 10.1071/as02055 |
| Popis: | On the basis of the different radio properties (especially different radio morphologies) between GPS galaxies and GPS quasars, I suggest that GPS galaxies are a more homogeneous class mainly consisting of compact symmetric objects, while the majority of GPS quasars are an intrinsically different type of radio source, similar to the common flat spectrum radio sources. For CSS radio sources the difference between galaxies and quasars is less evident. This is interpreted as a bias correlated with size: samples of smaller objects are more likely to be contaminated by unrelated objects. This is consistent also with the high percentage of blazar/quasar objects present in a sample of the even smaller HFP radio sources. |
| Databáze: | OpenAIRE |
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