The XMM-Newton observation of GRB 040106: Evidence for an afterglow in a wind environment
Abstract
We present the XMM-Newton observation of GRB 040106. From the X-ray spectral index and temporal decay, we argue that the afterglow is consistent with a fireball expanding in a wind environment. A constant density environment is excluded by the data. This is one of the very few cases in which this conclusion can be drawn.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- September 2004
- DOI:
- 10.1051/0004-6361:200400047
- arXiv:
- arXiv:astro-ph/0407613
- Bibcode:
- 2004A&A...424L..27G
- Keywords:
-
- gamma-ray burst;
- X-ray: general;
- Astrophysics
- E-Print:
- Letter accepted for publication in Astronomy and Astrophysics. 4 pages, 3 B&