Interstellar scintillation, ISS, and intrinsic variability of radio AGN

Thumbnail Image

Files

ELEC_Jauncey_Interstellar_scintillation_JASR_14242.pdf (2.22 MB)

Links to Files

https://www.sciencedirect.com/science/article/abs/pii/S0273117719303138#!

Permanent Link

https://doi.org/10.1016/j.asr.2019.05.003
 http://hdl.handle.net/11603/21673

Collections

UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
UMBC Faculty Collection
UMBC Physics Department

Author/Creator

Author/Creator ORCID

Date

2019-05-13

Type of Work

journal articles postprints
Text

Department

Program

Citation of Original Publication

Jauncey, David L.; Koay, Jun Yi; Bignall, Hayley; Macquart, Jean-Pierre; Pursimo, Tapio; Giroletti, Marcello; Hovatta, Talvikki; Kiehlmann, Sebastian; Rickett, Barney; Readhead, Anthony; Max-Moerbeck, Walter; Vedantham, Harish; Reynolds, Cormac; Lovell, James; Ojha, Roopesh; Kedziora-Chudczer, Lucyna; Interstellar scintillation, ISS, and intrinsic variability of radio AGN; Advances in Space Research 65,2, pp 756-762 (2019); https://doi.org/10.1016/j.asr.2019.05.003

Rights

This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Access to this item will begin on 2022-01-15

Subjects

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.