Optically Selected GRB Afterglows
Astrophysics
2009-11-11 v1
Abstract
Since November 2004, we attempt to detect GRB optical afterglows in near real-time on images taken at the Canada France Hawaii Telescope within the Very Wide Survey, component of the CFHT Legacy survey. To do so, a Real Time Analysis System automatically and quickly analyzes MegaCAM images and extracts from them a list of photometrically and astrometrically variable objects which is then validated by a member of the collaboration. Each month, we repeatedly observe 15 to 30 square degrees down to magnitude i' = 22.5. A few objects are classified as candidates and analyzed more deeply, and statistics are done showing the treatment's performance.
Cite
@article{arxiv.astro-ph/0602370,
title = {Optically Selected GRB Afterglows},
author = {Frederic Malacrino and Jean-Luc Atteia and the GRB RTAS Collaboration},
journal= {arXiv preprint arXiv:astro-ph/0602370},
year = {2009}
}
Comments
4 pages, 5 figures, proceeding of the Swift Symposium