Sutton, Patrick J. and Jones, Gareth and Chatterji, Shourov and Kalmus, Peter and Leonor, Isabel and Poprocki, Stephen and Rollins, Jameson and Searle, Antony and Stein, Leo and Tinto, Massimo and Was, Michal (2010) X-Pipeline: an analysis package for autonomous gravitational-wave burst searches. New Journal of Physics, 12 (5). Art. No. 053034. ISSN 1367-2630 http://resolver.caltech.edu/CaltechAUTHORS:20100701-092807222
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Autonomous gravitational-wave searches—fully automated analyses of data that run without human intervention or assistance—are desirable for a number of reasons. They are necessary for the rapid identification of gravitational-wave burst candidates, which in turn will allow for follow-up observations by other observatories and the maximum exploitation of their scientific potential. A fully automated analysis would also circumvent the traditional 'by hand' setup and tuning of burst searches that is both labourious and time consuming. We demonstrate a fully automated search with X-Pipeline, a software package for the coherent analysis of data from networks of interferometers for detecting bursts associated with gamma-ray bursts (GRBs) and other astrophysical triggers. We discuss the methods X-Pipeline uses for automated running, including background estimation, efficiency studies, unbiased optimal tuning of search thresholds and prediction of upper limits. These are all done automatically via Monte Carlo with multiple independent data samples and without requiring human intervention. As a demonstration of the power of this approach, we apply X-Pipeline to LIGO data to compute the sensitivity to gravitational-wave emission associated with GRB 031108. We find that X-Pipeline is sensitive to signals approximately a factor of 2 weaker in amplitude than those detectable by the cross-correlation technique used in LIGO searches to date. We conclude with comments on the status of X-Pipeline as a fully autonomous, near-real-time-triggered burst search in the current LSC-Virgo Science Run.
|Additional Information:||© 2010 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Received 15 September 2009. Published 21 May 2010. We thank Kipp Cannon and Ray Frey for valuable comments on an earlier draft of this paper. PJS and GJ were supported in part by STFC grant number PP/F001096/1. For MT, the research was performed at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. MT was supported under research task number 05-BEFS05-0014.MWwas supported by the California Institute of Technology and the École normale supérieure Paris. LS and SP were supported by an NSF REU Site grant.We thank the LIGO Scientific Collaboration for permission to use data from the time of GRB 031108 for our tests. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation and operates under cooperative agreement number PHY-0107417. This paper has been assigned LIGO document number LIGO-P0900097-v4.|
|Other Numbering System:|
|Classification Code:||PACS: 04.80.Nn; 98.70.Rz &ggr; 95.30.Sf; 95.55.Ym|
|Official Citation:||Patrick J Sutton et al 2010 New J. Phys. 12 053034 doi: 10.1088/1367-2630/12/5/053034|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||03 Aug 2010 23:26|
|Last Modified:||26 Dec 2012 12:11|
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