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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

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, Mauro
dc.contributor.author	D'Avanzo, P.
dc.contributor.author	Danziger, J.
dc.contributor.author	Fernández 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.citation	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.identifier.uri	http://hdl.handle.net/10550/16804
dc.description.abstract	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_US
dc.language.iso	en	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	journal article	es_ES
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA	en
dc.identifier.doi	10.1051/0004-6361:200500198	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://www.aanda.org/articles/aa/pdf/2005/45/aahg151.pdf	en