Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-12-02
Astronomy and Astrophysics
Astrophysics
Solicited review at the 34th COSPAR Scientific Assembly; submitted to Adv. in Sp. Res.; 10 pages, including 2 eps figures
Scientific paper
Absorption and Reprocessing of Gamma-ray burst radiation in the environment of cosmological GRBs can be used as a powerful probe of the elusive nature of their progenitors. In particular, transient X-ray emission line and absorption features in the prompt and early afterglows of GRBs are sensitive to details of the location and density structure of the reprocessing and/or absorbing material. To date, there have been only rather few detections of such features, and the significance is marginal in most individual cases. However, transient X-ray emission lines in GRB afterglows have now been found by four different X-ray satellites, which may justify a more detailed theoretical investigation of their origin. In this paper, I will first present a brief review of the status of observations of transient X-ray emission line and absorption features. I will then discuss general physics constraints which those results impose on isotropy, homogeneity, and location of the reprocessing material with respect to the GRB source, and review the various currently discussed, specific models of GRBs and their environments in which the required conditions could arise.
No associations
LandOfFree
X-Ray Lines and Absorption Edges in GRBs and Their Afterglows 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 X-Ray Lines and Absorption Edges in GRBs and Their Afterglows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-Ray Lines and Absorption Edges in GRBs and Their Afterglows will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-602309