Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published January 15, 2020 | public
Journal Article

Interstellar Scintillation, ISS, and Intrinsic Variability of Radio AGN


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.

Additional Information

© 2019 Published by Elsevier Ltd on behalf of COSPAR. Received 4 February 2019, Revised 29 April 2019, Accepted 1 May 2019, Available online 13 May 2019.

Additional details

August 22, 2023
October 20, 2023