Effects of data quality vetoes on a search for compact binary coalescences in Advanced LIGO's first observing run

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dc.contributor.author Sengupta, Anand
dc.date.accessioned 2018-03-15T06:51:49Z
dc.date.available 2018-03-15T06:51:49Z
dc.date.issued 2018-02
dc.identifier.citation Sengupta, Anand et al.,"Effects of data quality vetoes on a search for compact binary coalescences in Advanced LIGO's first observing run", Classical and Quantum Gravity, DOI: 10.1088/1361-6382/aaaafa, vol. 35, no. 6, Feb. 2018. en_US
dc.identifier.issn 0264-9381
dc.identifier.issn 1361-6382
dc.identifier.uri http://dx.doi.org/10.1088/1361-6382/aaaafa
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/3508
dc.description.abstract The first observing run of Advanced LIGO spanned 4 months, from 12 September 2015 to 19 January 2016, during which gravitational waves were directly detected from two binary black hole systems, namely GW150914 and GW151226. Confident detection of gravitational waves requires an understanding of instrumental transients and artifacts that can reduce the sensitivity of a search. Studies of the quality of the detector data yield insights into the cause of instrumental artifacts and data quality vetoes specific to a search are produced to mitigate the effects of problematic data. In this paper, the systematic removal of noisy data from analysis time is shown to improve the sensitivity of searches for compact binary coalescences. The output of the PyCBC pipeline, which is a python-based code package used to search for gravitational wave signals from compact binary coalescences, is used as a metric for improvement. GW150914 was a loud enough signal that removing noisy data did not improve its significance. However, the removal of data with excess noise decreased the false alarm rate of GW151226 by more than two orders of magnitude, from 1 in 770 yr to less than 1 in 186?000 yr.
dc.description.statementofresponsibility by Anand Sengupta et al.
dc.format.extent vol. 35, no. 6
dc.language.iso en en_US
dc.publisher IOP Publishing en_US
dc.subject LIGO en_US
dc.subject detector characterization en_US
dc.subject compact binary coalescences en_US
dc.title Effects of data quality vetoes on a search for compact binary coalescences in Advanced LIGO's first observing run en_US
dc.type Article en_US
dc.relation.journal Classical and Quantum Gravity


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