Implementation of an ℱ-statistic all-sky search for continuous gravitational waves in Virgo VSR1 data
Author(s)
LIGO Scientific Collaboration; Virgo Collaboration; Aggarwal, N.; Barsotti, Lisa; Biscans, S.; Bodiya, T.P.; Donovan, Frederick J.; Essick, R.; Evans, Matthew J.; Fritschel, Peter K.; Gras, Slawek; Isogai, T.; Katsavounidis, Erotokritos; Kwee, P.; Lee, J.; Libson, Adam A.; Lynch, R.; MacInnis, Myron E.; Mason, Kenneth R.; Matichard, F.; Mavalvala, Nergis; Miller, J.; Mittleman, Richard K.; Oelker, E.; Shoemaker, David H.; Tse, Maggie; Vaulin, R.; Vitale, Salvatore; Weiss, Rainer; Wipf, C.C.; Zhang, Fan; Zucker, M.E.; ... Show more Show less
Download1402.4974.pdf (2.426Mb)
Alternative title
Implementation of an F-statistic all-sky search for continuous gravitational waves in Virgo VSR1 data
Terms of use
Metadata
Show full item recordAbstract
We present an implementation of the F-statistic to carry out the first search in data from the Virgo laser interferometric gravitational wave detector for periodic gravitational waves from a priori unknown, isolated rotating neutron stars. We searched a frequency f[subscript 0] range from 100 Hz to 1 kHz and the frequency dependent spindown f[subscript 1] range from -1.6(f0/100 Hz)×10-⁹ Hz/s to zero. A large part of this frequency spindown space was unexplored by any of the all-sky searches published so far. Our method consisted of a coherent search over two-day periods using the F-statistic, followed by a search for coincidences among the candidates from the two-day segments. We have introduced a number of novel techniques and algorithms that allow the use of the fast Fourier transform (FFT) algorithm in the coherent part of the search resulting in a fifty-fold speed-up in computation of the F-statistic with respect to the algorithm used in the other pipelines. No significant gravitational wave signal was found. The sensitivity of the search was estimated by injecting signals into the data. In the most sensitive parts of the detector band more than 90% of signals would have been detected with dimensionless gravitationalwave amplitude greater than 5 ×10²⁴. © 2014
Date issued
2014-08Department
Massachusetts Institute of Technology. Department of Physics; MIT Kavli Institute for Astrophysics and Space ResearchJournal
Classical and Quantum Gravity
Publisher
IOP Publishing
Citation
LIGO Scientific Collaboration (Aasi, J., et al.), "Implementation of an ℱ-statistic all-sky search for continuous gravitational waves in Virgo VSR1 data." Classical and Quantum Gravity 31, 16 (Aug. 2014): no. 165014 doi 10.1088/0264-9381/31/16/165014 ©2014 Author(s)
Version: Original manuscript
ISSN
0264-9381
1361-6382
Collections
The following license files are associated with this item: