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Intraday radio variability in active galactic nuclei |
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| Authors: | A. Kraus A. Witzel T. P. Krichbaum |
| Affiliation: | 1. West China Biomedical Big Data Center, Sichuan University West China Hospital, Chengdu, Sichuan Province, China;2. Department of Orthopedics, Orthopedic Research Institute and National Clinical Research Center for Geriatrics, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan Province, China;3. College of Electrical Engineering, Sichuan University, Chengdu, Sichuan Province, China;4. Sichuan University-Pittsburgh Institute (SCUPI), Sichuan University, Chengdu, Sichuan Province, China;5. Med-X Center for Informatics, Sichuan University, Chengdu, Sichuan Province, China |
| Abstract: | Rapid flux density variations on timescales of the order of a day or less (Intraday Variability, IDV) in the radio regime are a common phenomenon within the blazar class. Observations with the Effelsberg 100-m telescope of the MPIfR showed that the variations occur not only in total intensity, but also in the polarized intensity and in polarization angle. Here we present an overview of our IDV-observations and discuss briefly some models which may explain the effect. |
| Keywords: | Galaxies: active Radio continuum: galaxies |
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