The Origin Of Radio Scintillation In The Local Interstellar Medium

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dc.contributor.utaustinauthorRedfield, Sethen_US
dc.creatorLinsky, Jeffrey L.en_US
dc.creatorRickett, Barney J.en_US
dc.creatorRedfield, Sethen_US
dc.date.accessioned2016-04-28T19:34:03Z
dc.date.available2016-04-28T19:34:03Z
dc.date.issued2008-03en
dc.description.abstractWe study three quasar radio sources (B1257-326, B1519-273, and J1819+385) that show large-amplitude intraday and annual scintillation variability produced by the Earth's motion relative to turbulent-scattering screens located within a few parsecs of the Sun. We find that the lines of sight to these sources pass through the edges of partially ionized warm interstellar clouds where two or more clouds may interact. From the gas flow vectors of these clouds, we find that the relative radial and transverse velocities of these clouds are large and could generate the turbulence that is responsible for the observed scintillation. For all three sight lines the flow velocities of nearby warm local interstellar clouds are consistent with the fits to the transverse flows of the radio scintillation signals.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipNSF AST 05-07713en_US
dc.description.sponsorshipNASA HST-HF-01190.01, NAS 5-26555en_US
dc.identifierdoi:10.15781/T2B819
dc.identifier.Filename2008_03_scintillation.pdfen_US
dc.identifier.citationLinsky, Jeffrey L., Barney J. Rickett, and Seth Redfield. "The origin of radio scintillation in the local interstellar medium." The Astrophysical Journal, Vol. 675, No. 1 (Mar., 2008): 413.en_US
dc.identifier.doi10.1086/526420en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/2152/34762
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialAstrophysical Journalen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionOpenen_US
dc.subjectism : atomsen_US
dc.subjectism : cloudsen_US
dc.subjectism : structureen_US
dc.subjectline : profilesen_US
dc.subjectultravioleten_US
dc.subject: ismen_US
dc.subjectultraviolet : starsen_US
dc.subjectrapid variabilityen_US
dc.subjectannual cyclesen_US
dc.subjectgasen_US
dc.subjectj1819+3845en_US
dc.subjectscatteringen_US
dc.subjectvelocityen_US
dc.subjectclouden_US
dc.subjectastronomy & astrophysicsen_US
dc.titleThe Origin Of Radio Scintillation In The Local Interstellar Mediumen_US
dc.typeArticleen_US

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