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Sunyaev, S.A. Trushkin, S.B. Pandey, S. Guziy, T.A. Fatkhullin, T. Mizuno, T. Ozisik, T. Soyano, T. Tamagawa, U. Kiziloglu, V.V. Sokolov, W.H. Ip, Y. Arai, Y. Urata, Yu.Yu. Balega, Z. Aslan","submitted_at":"2006-12-19T16:47:13Z","abstract_excerpt":"Aims. Understand the shape and implications of the multiband light curve of GRB 050408, an X-ray rich (XRR) burst. Methods. We present a multiband optical light curve, covering the time from the onset of the gamma-ray event to several months after, when we only detect the host galaxy. Together with X-ray, millimetre and radio observations we compile what, to our knowledge, is the most complete multiband coverage of an XRR burst afterglow to date. Results. The optical and X-ray light curve is characterised by an early flattening and an intense bump peaking around 6 days after the burst onset. 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