Status Report

Gamma-Ray Bursts environment and progenitors

By SpaceRef Editor
January 17, 2003
Filed under , ,

Astrophysics, abstract
astro-ph/0301317


From: Davide Lazzati <[email protected]>
Date: Thu, 16 Jan 2003 10:39:24 GMT (65kb)

Gamma-Ray Bursts environment and progenitors


Authors:
Davide Lazzati (IoA, Cambridge, UK)

Comments: 8 pages, 3 figures. Invited talk at the meeting: “Gamma Ray Bursts in
the afterglow era – Third workshop. September 2002, Rome


The properties of the ambient medium in which GRBs go off are an important
piece of the puzzle, not only as an issue in itself, but because of their link
with the nature of the progenitor. In this review, I describe and critically
comment the various experiments proposed to study the burst environment. I
discuss emission and absorption features techniques and compare their results
to afterglow modelling. A consistent picture cannot be drawn, and I suggest
that the evaporation of the soft X-ray absorbing column is the more promising
of the tools, even though the fast reaction of Swift is required in order to
obtain data of sufficiently high quality.

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