NAGIOS: RODERIC FUNCIONANDO
GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB
Repositori DSpace/Manakin
- Inici
- Investigació
- e-prints
- 21 - Astronomia i Astrofísica
- Visualitza element
IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/
GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB
Mostra el registre complet de l'element
|
Visualització
|
| Castro-Tirado, A. J.; Gorosabel, J.; Guziy, S.; Reverte, D.; Castro Cerón, J. M.; de Ugarte Postigo, A.; 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.; Vílchez, J.; Lund, N.; Brandt, S.; Martinez Nuñez, Silvia; Reglero Velasco, Victor; Pérez-Ramírez, M. D.; Klose, S.; Greiner, J.; Hjorth, J.; Kaper, L.; Pian, E.; Palazzi, E.; Andersen, M.I.; Fruchter, A.; Fynbo, J. P. U.; Jensen, J.L.; Kouveliotou, C.; Rhoads, J.; Rol, E.; Vreeswijk, P.M.; Wijers, R. A. M. J.; van den Heuvel, E. | |||
| Aquest document és un/a article, creat/da en: 2003 | |||
|
|
|||
|
|||
| 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. | |||
| Veure al catàleg Trobes | |||