Radio loudness
In the case of an astronomical object, the term radio loudness describes the ratio of radio radiation to electromagnetic radiation in other spectral ranges if there is a bimodal distribution . Accordingly, astronomical objects are divided into radio-quiet and radio- loud sources. This classification is used for pulsars as well as all types of active galactic nuclei such as quasars , Seyfert galaxies , BL Lacertae objects and blazars .
literature
- M. Meléndez, SB Kraemer, HR Schmitt: A New Radio Loudness Diagnostic for Active Galaxies: a Radio-To-Mid-Infrared Parameter . In: Astrophysics. Solar and Stellar Astrophysics . 2010, arxiv : 1003.2984v1 .
- M. Sikora, L. Stawarz, J.-P. Lasota: Radio-loudness of Active Galaxies and the Black Hole Evolution . In: Astrophysics. Solar and Stellar Astrophysics . 2008, arxiv : 0802.2302v1 .