Multiwavelength observations of PKS 2255-282

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dc.contributor.authorTornikoski, M.
dc.contributor.authorTingay, S.
dc.contributor.authorMuecke, A.
dc.contributor.authorChen, A.
dc.contributor.authorConnaughton, V.
dc.contributor.authorJauncey, D.
dc.contributor.authorJohnston-Hollitt, M.
dc.contributor.authorKemp, J.
dc.contributor.authorKing, E.
dc.contributor.authorMcGee, P.
dc.contributor.authorRantakyro, F.
dc.contributor.authorRayner, D.
dc.contributor.authorReimer, O.
dc.contributor.authorTzioumis, A.
dc.date.issued1999
dc.description.abstractDuring high radio frequency active galactic nucleus monitoring, we observed a major millimeter wave outburst from PKS 2255-282 in 1997 and initiated a campaign for multifrequency radio monitoring and VLBI imaging of the source. In 1998 January the EGRET instrument on board the Compton Gamma Ray Observatory detected a bright high-energy γ-ray outburst from its direction. Thus, we had the unique opportunity to monitor the source in detail at various radio frequencies already before the detection of the γ-ray outburst. We also initiated multiwavelength follow-up observations. In this paper we present multiwavelength data for PKS 2255-282 before and after the γ-ray outburst. Further, based on the observations, we estimate some physical parameters for this source and discuss the various emission mechanisms possibly involved during this outburst.
dc.description.statementofresponsibilityM. Tornikoski, S. J. Tingay, A. Mücke, A. Chen, V. Connaughton, D. L. Jauncey, M. Johnston-Hollitt, J. Kemp, E. A. King, P. McGee, F. Rantakyrö, D. Rayner, O. Reimer, and A. K. Tzioumis
dc.identifier.citationThe Astronomical Journal, 1999; 118(3):1161-1168
dc.identifier.doi10.1086/301019
dc.identifier.issn0004-6256
dc.identifier.orcidMcGee, P. [0000-0002-9576-442X]
dc.identifier.urihttp://hdl.handle.net/2440/12398
dc.language.isoen
dc.publisherInstitute of Physics
dc.rights© 1999. The American Astronomical Society
dc.source.urihttp://iopscience.iop.org.proxy.library.adelaide.edu.au/1538-3881/118/3/1161
dc.subjectquasars: general
dc.subjectquasars: individual (PKS 2255-282)
dc.titleMultiwavelength observations of PKS 2255-282
dc.typeJournal article
pubs.publication-statusPublished

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