GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB
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GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB

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GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB

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dc.contributor.author Castro-Tirado, A. J.
dc.contributor.author Gorosabel, J.
dc.contributor.author Guziy, S.
dc.contributor.author Reverte, D.
dc.contributor.author Castro Cerón, J. M.
dc.contributor.author de Ugarte Postigo, A.
dc.contributor.author Tanvir, N.
dc.contributor.author Mereghetti, S.
dc.contributor.author Tiengo, A.
dc.contributor.author Buckle, J.
dc.contributor.author Sagar, R.
dc.contributor.author Pandey, S.B.
dc.contributor.author Mohan, V.
dc.contributor.author Masetti, N.
dc.contributor.author Mannucci, F.
dc.contributor.author Feltzing, S.
dc.contributor.author Lundstrom, I.
dc.contributor.author Pedersen, H.
dc.contributor.author Riess, C.
dc.contributor.author Trushkin, S.
dc.contributor.author Vílchez, J.
dc.contributor.author Lund, N.
dc.contributor.author Brandt, S.
dc.contributor.author Martinez Nuñez, Silvia
dc.contributor.author Reglero Velasco, Victor
dc.contributor.author Pérez-Ramírez, M. D.
dc.contributor.author Klose, S.
dc.contributor.author Greiner, J.
dc.contributor.author Hjorth, J.
dc.contributor.author Kaper, L.
dc.contributor.author Pian, E.
dc.contributor.author Palazzi, E.
dc.contributor.author Andersen, M.I.
dc.contributor.author Fruchter, A.
dc.contributor.author Fynbo, J. P. U.
dc.contributor.author Jensen, J.L.
dc.contributor.author Kouveliotou, C.
dc.contributor.author Rhoads, J.
dc.contributor.author Rol, E.
dc.contributor.author Vreeswijk, P.M.
dc.contributor.author Wijers, R. A. M. J.
dc.contributor.author van den Heuvel, E.
dc.date.accessioned 2010-06-29T11:07:48Z
dc.date.available 2010-06-29T11:07:48Z
dc.date.issued 2003
dc.identifier.uri http://hdl.handle.net/10550/14020
dc.description.abstract We present multiwavelength observations of a gamma-ray burst detected by INTEGRAL (GRB 030227) between 5.3 hours and ~1.7 days after the event. Here we report the discovery of a dim optical afterglow (OA) that would not have been detected by many previous searches due to its faintess (R ~ 23). This OA was seen to decline following a power law decay with index αR = −0.95 +- 0.16. The spectral index βopt/NIR yielded −1.25 +- 0.14. These values may be explained by a relativistic expansion of a fireball (with p = 2.0) in the cooling regime. We also find evidence for inverse Compton scattering in X-rays. en
dc.language.iso en en
dc.relation http://www.aanda.org/articles/aa/pdf/2003/43/aaINTEGRAL21.pdf en
dc.source CASTRO-TIRADO, A. J. et al. 2003, GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB, Astronomy and Astrophysics, vol. 411, no. 1, p. L315–L319 en
dc.subject Gamma rays ; Bursts ; Photometric ; Cosmology observations en
dc.title GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB 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.subject.unesco UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia en
dc.identifier.doi 10.1051/0004-6361:20031393 en
dc.description.private Martinez Nuñez, Silvia, Silvia.Martinez@uv.es ; Reglero Velasco, Victor, Victor.Reglero@uv.es en
dc.identifier.idgrec 003626 en

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