Limitations of the time slide method of background estimation
- Resource Type
- Authors
- Florent Robinet; Michał Wąs; Patrice Hello; F. Cavalier; Nicolas Leroy; V. Brisson; Miltiadis Vavoulidis; Marie-Anne Bizouard; M. Davier
- Source
- Classical and Quantum Gravity
14th Gravitational Wave Data Analysis Workshop (GWDAW-14)
F. Ricci. 14th Gravitational Wave Data Analysis Workshop (GWDAW-14), Jan 2010, Roma, Italy. IOP Publishing, 27, pp.194014, 2010, ⟨10.1088/0264-9381/27/19/194014⟩
- Subject
- Physics
[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]
Physics and Astronomy (miscellaneous)
010308 nuclear & particles physics
Gravitational wave
business.industry
Detector
Variance (accounting)
Time shifting
01 natural sciences
Coincidence
[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]
Optics
Amplitude
Coincident
0103 physical sciences
False alarm
business
010303 astronomy & astrophysics
Algorithm
- Language
- English
International audience; Time shifting the output of gravitational wave detectors operating in coincidence is a convenient way of estimating the background in a search for short-duration signals. In this paper, we show how non-stationary data affect the background estimation precision. We present a method of measuring the fluctuations of the data and computing its effects on a coincident search. In particular, we show that for fluctuations of moderate amplitude, time slides larger than the fluctuation time scales can be used. We also recall how the false alarm variance saturates with the number of time shifts.