GRB 011121: A collimated outflow into wind-blown surroundings

We discover a break in the GRB 011121 afterglow light curve after 1.3 days, which implies an initial jet opening angle of about 9 deg. The SED during the first four days is achromatic, and supports the jet origin of this break. The SED during the supernova bump can be best represented by a black bod...

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Veröffentlicht in:	arXiv.org 2003-09
Hauptverfasser:	Greiner, J, Klose, S, Salvato, M, Zeh, A, Schwarz, R, Hartmann, D H, Masetti, N, Stecklum, B, Lamer, G, Lodieu, N, Scholz, R D, Sterken, C, Gorosabel, J, Burud, I, Rhoads, J, Mitrofanov, I, Litvak, M, Sanin, A, Grinkov, V, Andersen, M I, Castro Cerón, J M, Castro-Tirado, A J, Fruchter, A, Fynbo, J U, Hjorth, J, Kaper, L, Kouveliotou, C, Palazzi, E, Pian, E, Rol, E, Tanvir, N R, Vreeswijk, P M, R A M J Wijers, van den Heuvel, E
Format:	Artikel
Sprache:	eng
Schlagworte:	Blackbody Collimation Gamma ray astronomy Gamma ray bursts Light curve Massive stars Outflow Red shift Stellar winds
Online-Zugang:	Volltext
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