Interstellar scintillation, ISS, and intrinsic variability of radio AGN

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dc.contributor.authorJauncey, David L.
dc.contributor.authorKoay, Jun Yi
dc.contributor.authorBignall, Hayley
dc.contributor.authorMacquart, Jean-Pierre
dc.contributor.authorPursimo, Tapio
dc.contributor.authorGiroletti, Marcello
dc.contributor.authorHovatta, Talvikki
dc.contributor.authorKiehlmann, Sebastian
dc.contributor.authorRickett, Barney
dc.contributor.authorReadhead, Anthony
dc.contributor.authorMax-Moerbeck, Walter
dc.contributor.authorVedantham, Harish
dc.contributor.authorReynolds, Cormac
dc.contributor.authorLovell, James
dc.contributor.authorOjha, Roopesh
dc.contributor.authorKedziora-Chudczer, Lucyna
dc.date.accessioned2021-06-03T19:20:52Z
dc.date.available2021-06-03T19:20:52Z
dc.date.issued2019-05-13
dc.description.abstractWe 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.en_US
dc.description.sponsorshipThis research has made use of data from the OVRO 40-m monitoring program (Richards et al., 2011) which is supported in part by NASA grants NNX08AW31G, NNX11A043G, and NNX14AQ89G and NSF grants AST0808050 and AST-1109911. The Wisconsin Hα Mapper and its Hα Sky Survey have been funded primarily by the National Science Foundation. The facility was designed and built with the help of the University of Wisconsin Graduate School, Physical Sciences Lab, and Space Astronomy Lab. NOAO staff at Kitt Peak and Cerro Tololo provided on-site support for its remote operation.en_US
dc.description.urihttps://www.sciencedirect.com/science/article/abs/pii/S0273117719303138#!en_US
dc.format.extent17 pagesen_US
dc.genrejournal articles postprintsen_US
dc.identifierdoi:10.13016/m2w920-zlal
dc.identifier.citationJauncey, 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.2019.05.003en_US
dc.identifier.urihttps://doi.org/10.1016/j.asr.2019.05.003
dc.identifier.urihttp://hdl.handle.net/11603/21673
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Physics Department
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis 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.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)*
dc.rightsAccess to this item will begin on 2022-01-15
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleInterstellar scintillation, ISS, and intrinsic variability of radio AGNen_US
dc.typeTexten_US

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