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GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB by Castro-Tirado, A. J.; Gorosabel, J.; Guziy, S.; Reverte, D.; Cerón, J. M. Castro; Postigo, A. de Ugarte; Tanvir, N.; Mereghetti, S.; Tiengo, A.; Buckle, J.; Sagar, R.; Pandey, S. B.; Mohan, V.; Masetti, N.; Mannucci, F.; Feltzing, S.; Lundstrom, I.; Pedersen, H.; Riess, C.; Trushkin, S.; Vilchez, J.; Lund, N.; Brandt, S.; Nunez, S. Martinez; Reglero, V.; Perez-Ramirez, M. D.; Klose, S.; Greiner, J.; Hjorth, J.; Kaper, L.; Pian, E.; Palazzi, E.; Andersen, M. I.; Fruchter, A.; Fynbo, J. P. U.; Jensen, B. L.; Kouveliotou, C.; Rhoads, J.; Rol, E.; Vreeswijk, P. M.; Wijers, R. A. M. J.; Heuvel, E. van den is a scholarly article available to read on EtoBox.

What is GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB about?

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 Alpha_R= -0.95 +/- 0.16. The spectral index Beta_opt/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.

Author
Castro-Tirado, A. J.; Gorosabel, J.; Guziy, S.; Reverte, D.; Cerón, J. M. Castro; Postigo, A. de Ugarte; Tanvir, N.; Mereghetti, S.; Tiengo, A.; Buckle, J.; Sagar, R.; Pandey, S. B.; Mohan, V.; Masetti, N.; Mannucci, F.; Feltzing, S.; Lundstrom, I.; Pedersen, H.; Riess, C.; Trushkin, S.; Vilchez, J.; Lund, N.; Brandt, S.; Nunez, S. Martinez; Reglero, V.; Perez-Ramirez, M. D.; Klose, S.; Greiner, J.; Hjorth, J.; Kaper, L.; Pian, E.; Palazzi, E.; Andersen, M. I.; Fruchter, A.; Fynbo, J. P. U.; Jensen, B. L.; Kouveliotou, C.; Rhoads, J.; Rol, E.; Vreeswijk, P. M.; Wijers, R. A. M. J.; Heuvel, E. van den
Published
2003
Language
EN

More by Castro-Tirado, A. J.; Gorosabel, J.; Guziy, S.; Reverte, D.; Cerón, J. M. Castro; Postigo, A. de Ugarte; Tanvir, N.; Mereghetti, S.; Tiengo, A.; Buckle, J.; Sagar, R.; Pandey, S. B.; Mohan, V.; Masetti, N.; Mannucci, F.; Feltzing, S.; Lundstrom, I.; Pedersen, H.; Riess, C.; Trushkin, S.; Vilchez, J.; Lund, N.; Brandt, S.; Nunez, S. Martinez; Reglero, V.; Perez-Ramirez, M. D.; Klose, S.; Greiner, J.; Hjorth, J.; Kaper, L.; Pian, E.; Palazzi, E.; Andersen, M. I.; Fruchter, A.; Fynbo, J. P. U.; Jensen, B. L.; Kouveliotou, C.; Rhoads, J.; Rol, E.; Vreeswijk, P. M.; Wijers, R. A. M. J.; Heuvel, E. van den

Browse all works by Castro-Tirado, A. J.; Gorosabel, J.; Guziy, S.; Reverte, D.; Cerón, J. M. Castro; Postigo, A. de Ugarte; Tanvir, N.; Mereghetti, S.; Tiengo, A.; Buckle, J.; Sagar, R.; Pandey, S. B.; Mohan, V.; Masetti, N.; Mannucci, F.; Feltzing, S.; Lundstrom, I.; Pedersen, H.; Riess, C.; Trushkin, S.; Vilchez, J.; Lund, N.; Brandt, S.; Nunez, S. Martinez; Reglero, V.; Perez-Ramirez, M. D.; Klose, S.; Greiner, J.; Hjorth, J.; Kaper, L.; Pian, E.; Palazzi, E.; Andersen, M. I.; Fruchter, A.; Fynbo, J. P. U.; Jensen, B. L.; Kouveliotou, C.; Rhoads, J.; Rol, E.; Vreeswijk, P. M.; Wijers, R. A. M. J.; Heuvel, E. van den