Optical afterglows of short Gamma-ray Bursts and GRB 040924 release_ccxfiugxv5evhejwsvpfs6nl4e

by Y. Z. Fan, Bing Zhang, Shiho Kobayashi, Peter Meszaros

Released as a article .

2005  

Abstract

Short-duration Gamma-ray bursts (GRBs) (≤ 2 s) have remained a mystery due to the lack of afterglow detection until recently. The models to interpret short GRBs invoke distinct progenitor scenarios. Here we present a generic analysis of short GRB afterglows, and calculate the optical lightcurves of short GRBs within the framework of different progenitor models. We show that all these optical afterglows are bright enough to be detected by the Ultraviolet and Optical Telescope (UVOT) on board the Swift observatory, and that different models could be distinguished with a well-monitored lightcurve. We also model the afterglow data of the recently discovered short burst GRB 040924. We find that the limited data are consistent with a low medium density environment which is consistent with the pre-concept of the compact-star merger progenitor model, although the models with a collapsar progenitor are not ruled out.
In text/plain format

Archived Content

There are no accessible files associated with this release. You could check other releases for this work for an accessible version.

"Dark" Preservation Only
Save Paper Now!

Know of a fulltext copy of on the public web? Submit a URL and we will archive it

Type  article
Stage   submitted
Date   2005-03-03
Version   v2
Language   en ?
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: 7aac7505-785a-4e2a-8ea4-41266391cc45
API URL: JSON