MASIV:The Microarcsecond Scintillation-Induced Variability Survey

dc.contributor.authorLovell, J.E.J.
dc.contributor.authorJauncey, D.L.
dc.contributor.authorSenkbeil, C.
dc.contributor.authorShabala, S.
dc.contributor.authorBignall, H.E.
dc.contributor.authorPursimo, T.
dc.contributor.authorOjha, R.
dc.contributor.authorMacquart, J.-P.
dc.contributor.authorRickett, B.J.
dc.contributor.authorDutka, M.
dc.contributor.authorKedziora-Chudczer, L.
dc.date.accessioned2020-03-10T16:07:32Z
dc.date.available2020-03-10T16:07:32Z
dc.date.issued2007-01-21
dc.descriptionASP Conference Series vol. 365 (2007)en
dc.description.abstractWe are undertaking a large-scale 5 GHz VLA survey of the northern sky to search for rapid intra-day variability (IDV). Over four observing epochs we found that 56% of the sources showed variability on timescales of hours to several days. Fewer variables were seen at high galactic latitudes, supporting interstellar-scintillation as the principal mechanism responsible for IDV. We find evidence that many of the scattering screens are not moving with the local standard of rest. There are few scintillating sources seen at high redshift which may be an indication of scattering in the turbulent intergalactic medium.en
dc.description.sponsorshipWe are most grateful for the technical support provided by the NRAO staff in Socorro. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under a cooperative agreement by Associated Universities Inc. The Australia telescope national facility is funded by the Commonwealth of Australia for operation as a National facility managed by CSIRO.en
dc.description.urihttp://www.aspbooks.org/a/volumes/table_of_contents/?book_id=78en
dc.format.extent12 pagesen
dc.genreconference papers and proceedings preprintsen
dc.identifierdoi:10.13016/m2c2x2-h0gc
dc.identifier.citationLovell, J.E.J.; Jauncey, D.L.; Senkbeil, C.; Shabala, S.; Bignall, H.E.; Pursimo, T.; Ojha, R.; Macquart, J.-P.; Rickett, B.J.; Dutka, M.; Kedziora-Chudczer, L.; MASIV:The Microarcsecond Scintillation-Induced Variability Survey; ASP Conference Series vol. 365 (2007); http://www.aspbooks.org/a/volumes/table_of_contents/?book_id=78en
dc.identifier.urihttp://hdl.handle.net/11603/17523
dc.language.isoenen
dc.publisherAstronomical Society of the Pacificen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
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.titleMASIV:The Microarcsecond Scintillation-Induced Variability Surveyen
dc.typeTexten

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