TY - JOUR
T1 - Interstellar scintillation, ISS, and intrinsic variability of radio AGN
AU - Jauncey, David L.
AU - Koay, Jun Yi
AU - Bignall, Hayley
AU - Macquart, Jean-Pierre
AU - Pursimo, Tapio
AU - Giroletti, Marcello
AU - Hovatta, Talvikki
AU - Kiehlmann, Sebastian
AU - Rickett, Barney
AU - Readhead, Anthony
AU - Max-Moerbeck, Walter
AU - Vedantham, Harish
AU - Reynolds, Cormac
AU - Lovell, James
AU - Ojha, Roopesh
AU - Kedziora-Chudczer, Lucyna
PY - 2020/1/15
Y1 - 2020/1/15
N2 - 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.
AB - 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.
KW - Active galactic nuclei
KW - Radio continuum: Quasars
KW - Variability
KW - Interstellar scintillation
KW - RAPID VARIABILITY
KW - INTRADAY VARIABILITY
KW - FLUX-DENSITY
KW - SCATTERING
U2 - 10.1016/j.asr.2019.05.003
DO - 10.1016/j.asr.2019.05.003
M3 - Article
SN - 0273-1177
VL - 65
SP - 756
EP - 762
JO - Advances in space research
JF - Advances in space research
IS - 2
ER -