Interstellar scintillation, ISS, and intrinsic variability of radio AGN
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2020Metadata
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Jauncey, David L.
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Interstellar scintillation, ISS, and intrinsic variability of radio AGN
Author
- Jauncey, David L.;
- Koay, Jun Yi;
- Bignall, Hayley;
- Macquart, Jean-Pierre;
- Pursimo, Tapio;
- Giroletti, Marcello;
- Hovatta, Talvikki;
- Kiehlmann, Sebastian;
- Rickett, Barney;
- Readhead, Anthony C. S.;
- Max-Moerbeck, Walter;
- Vedantham, Harish;
- Reynolds, Cormac;
- Lovell, James;
- Ojha, Roopesh;
- Kedziora Chudczer, Lucyna;
Abstract
We investigate the relationship between the 5 GHz interstellar scintillation (ISS) and the 15 GHz intrinsic variability of the compact, radio-selected active galactic nuclei (AGN) common to the Microarcsecond Scintillation-Induced Variability (MASIV) Survey and the Owens Valley Radio Observatory blazar flux density monitoring program. As part of this investigation, we also re-examine the reported intrinsic nature of the February 1990 VLA observations of the blazar S5 0716+714. We are also examining the presence of IDV/ISS in the Owens Valley 15 GHz flux density monitoring data. We find a significant relationship between the Owens Valley 15 GHz modulation index and the MASIV modulation index. We also discuss the implications of these findings for RadioAstron.
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Artículo de publicación ISI Artículo de publicación SCOPUS
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Advances in Space Research 65 (2020) 756–762
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