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The LSC glitch group: monitoring noise transients during the fifth LIGO science run

L Blackburn1, L Cadonati2, S Caride3, S Caudill4, S Chatterji5, N Christensen3, J Dalrymple6, S Desai7, A Di Credico6, G Ely3, J Garofoli8, L Goggin5, G González4, R Gouaty4, C Gray8, A Gretarsson9, D Hoak10, T Isogai3, E Katsavounidis1, J Kissel4, S Klimenko11, R A Mercer11, S Mohapatra2, S Mukherjee12, F Raab8, K Riles13, P Saulson6, R Schofield14, P Shawhan15, J Slutsky4, J R Smith6, R Stone12, C Vorvick8, M Zanolin9, N Zotov16 and J Zweizig5

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The LIGO Scientific Collaboration (LSC) glitch group is part of the LIGO detector characterization effort. It consists of data analysts and detector experts who, during and after science runs, collaborate for a better understanding of noise transients in the detectors. Goals of the glitch group during the fifth LIGO science run (S5) included (1) offline assessment of the detector data quality, with focus on noise transients, (2) veto recommendations for astrophysical analysis and (3) feedback to the commissioning team on anomalies seen in gravitational wave and auxiliary data channels. Other activities included the study of auto-correlation of triggers from burst searches, stationarity of the detector noise and veto studies. The group identified causes for several noise transients that triggered false alarms in the gravitational wave searches; the times of such transients were identified and vetoed from the data generating the LSC astrophysical results.


PACS

04.80.Nn Gravitational wave detectors and experiments

95.55.Ym Gravitational radiation detectors; mass spectrometers; and other instrumentation and techniques

MSC

83C35 Gravitational waves

Subjects

Instrumentation and measurement

Gravitation and cosmology

Astrophysics and astroparticles

Dates

Issue 18 (21 September 2008)

Received 4 April 2008, in final form 16 June 2008

Published 2 September 2008



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