GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB

Details GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB

2003-09-29

arxiv.org/abs/astro-ph/0309804v1

Astron.Astrophys.411:L315-L319,2003

Astronomy and Astrophysics

Astrophysics

5 pages, 5 figures, accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20031393

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.

Affiliated with

Also associated with

No associations

Rating

GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-279409