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dc.contributor.authorStevens, Jason
dc.contributor.authorLitchfield, S.J.
dc.contributor.authorRobson, E.I.
dc.contributor.authorHughes, D.H.
dc.contributor.authorGear, W.K.
dc.contributor.authorTerasranta, H.
dc.contributor.authorValtaoja, E.
dc.contributor.authorTornikoski, M.
dc.date.accessioned2012-01-17T12:01:08Z
dc.date.available2012-01-17T12:01:08Z
dc.date.issued1994-12-01
dc.identifier.citationStevens , J , Litchfield , S J , Robson , E I , Hughes , D H , Gear , W K , Terasranta , H , Valtaoja , E & Tornikoski , M 1994 , ' Multifrequency observations of blazars. 5: Long-term millimeter, submillimeter, and infrared monitoring ' , The Astrophysical Journal , vol. 437 , no. 1 , pp. 91-107 . https://doi.org/10.1086/174978
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 524127
dc.identifier.otherPURE UUID: de732091-8434-424a-bb3f-f19463ad77e9
dc.identifier.otherBibtex: urn:1d09ffd5a57f27d2e202dfcb6e5c77dc
dc.identifier.otherScopus: 12044259272
dc.identifier.urihttp://hdl.handle.net/2299/7670
dc.description.abstractMultifrequency monitoring data are presented for 17 blazars between 375 and 22 GHz. These data are used to study the overall flaring behavior of blazars, and, in particular, to test predictions of shock models for the early phases of flare evolution. It is shown that time delays between light curves and flare amplitudes at different frequencies are in good agreement with existing shock models. Evidence is found for the flares in BL Lac objects to reach maximal development at lower frequency than those of optically violent variable quasars. On short timescales the variability behavior is complex, with 'flickering' over a range of amplitudes. Most objects that underwent a large outburst during the monitoring period show a flattening of the 375-150 GHz spectral slope with increasing 270 GHz flux.en
dc.format.extent17
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.subjectASTRONOMICAL MODELS, BL LACERTAE OBJECTS, INFRARED ASTRONOMY, MILLIMETER WAVES, QUASARS, RADIO ASTRONOMY, RADIO JETS (ASTRONOMY), SUBMILLIMETER WAVES, ASTRONOMICAL PHOTOMETRY, ASTRONOMICAL SPECTROSCOPY, CONTINUUMS, INFRARED TELESCOPES, MATHEMATICAL MODELS, RADIO TELESCOPES, SHOCK WAVE INTERACTION
dc.titleMultifrequency observations of blazars. 5: Long-term millimeter, submillimeter, and infrared monitoringen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dcterms.dateAccepted1994-12-01
rioxxterms.versionofrecordhttps://doi.org/10.1086/174978
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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