Testing GRB models with the afterglow of GRB 090102

Details Testing GRB models with the afterglow of GRB 090102 Testing GRB models with the afterglow of GRB 090102

2009-09-07

arxiv.org/abs/0909.1167v2

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

10 pages, 1 color figures, 3 b&w figures, 6 tables. Accepted for publication into MNRAS. Discussion about SED and optical exti

Scientific paper

We present the observations of the afterglow of gamma-ray burst GRB 090102. Optical data taken by the TAROT, REM, GROND, together with publicly available data from Palomar, IAC and NOT telescopes, and X-ray data taken by the XRT instrument on board the Swift spacecraft were used. This event features an unusual light curve. In X-rays, it presents a constant decrease with no hint of temporal break from 0.005 to 6 days after the burst. In the optical, the light curve presents a flattening after 1 ks. Before this break, the optical light curve is steeper than that of the X-ray. In the optical, no further break is observed up to 10 days after the burst. We failed to explain these observations in light of the standard fireball model. Several other models, including the cannonball model were investigated. The explanation of the broad band data by any model requires some fine tuning when taking into account both optical and X-ray bands.

Affiliated with

Also associated with

No associations

Rating

Testing GRB models with the afterglow of GRB 090102 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 Testing GRB models with the afterglow of GRB 090102, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing GRB models with the afterglow of GRB 090102 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-295319