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Multiband photometry of the blazar PKS 0537-441 : a major active state in December 2004-March 2005

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Multiband photometry of the blazar PKS 0537-441 : a major active state in December 2004-March 2005

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dc.contributor.author Dolcini, A.
dc.contributor.author Covino, S.
dc.contributor.author Treves, A.
dc.contributor.author Palazzi, E.
dc.contributor.author Pian, E.
dc.contributor.author Molinari, E.
dc.contributor.author Chincarini, G.
dc.contributor.author Zerbi, F. M.
dc.contributor.author Rodonó, M.
dc.contributor.author Testa, V.
dc.contributor.author Tosti, G.
dc.contributor.author Vitali, F.
dc.contributor.author Antonelli, L. A.
dc.contributor.author Conconi, P.
dc.contributor.author Cutispoto, G.
dc.contributor.author Monfardini, A.
dc.contributor.author Stefanon, M.
dc.contributor.author D'Avanzo, P.
dc.contributor.author Danziger, J.
dc.contributor.author Fernandez Soto, Alberto
dc.contributor.author Meurs, E.
dc.date.accessioned 2010-08-10T10:49:33Z
dc.date.available 2010-08-10T10:49:33Z
dc.date.issued 2005
dc.identifier.uri http://hdl.handle.net/10550/16804
dc.language.iso en en
dc.relation http://www.aanda.org/articles/aa/pdf/2005/45/aahg151.pdf en
dc.source Dolcini, A. et al. Multiband photometry of the blazar PKS 0537-441: a major active state in December 2004-March 2005. En: Astronomy & Astrophysics, 2005, vol. 443, no. 3, December I 2005, p. L33-L36 en
dc.subject galaxies: active ; galaxies: BL Lacertae objects: PKS 0537-441 en
dc.title Multiband photometry of the blazar PKS 0537-441 : a major active state in December 2004-March 2005 en
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::ASTRONOMÍA Y ASTROFÍSICA en
dc.identifier.doi 10.1051/0004-6361:200500198 en
dc.description.abstractenglish Multiband VRIJHK photometry of the Blazar PKS 0537-441 obtained with the REM telescope from December 2004 to March 2005 is presented. A major period of activity is found with more than four magnitudes variability in the V filter in 50 days and of 2.5 in 10 days. In intensity and duration the activity is similar to that of 1972 reported by Eggen (1973, ApJ, 186, 1), but it is much better documented. No clear evidence of variability on time-scale of minutes is found. The spectral energy distribution is roughly described by a power-law, with the weaker state being the softer. en
dc.description.private alferso@uv.es en
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