Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data
Name
Aasi-2013-all-sky search for periodic gravitational waves in LIGO S5 data.pdf
Size
4.42 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Barsotti, Lisa
Bodiya, Timothy Paul
Corbitt, Thomas R.
Donovan, Frederick J.
Dwyer, S.
Evans, Matthew J.
Foley, S.
Fritschel, Peter K.
Katsavounidis, Erotokritos
Kissel, Jeffrey S.
Date Issued
February 2013
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aasi, J. et al. “Einstein@Home All-sky Search for Periodic Gravitational Waves in LIGO S5 Data.” Physical Review D 87.4 (2013).
Version
Final published version
Abstract
This paper presents results of an all-sky search for periodic gravitational waves in the frequency range [50,1 190] Hz and with frequency derivative range of ∼[-20,1.1]×10[superscript -10] Hz s[superscript -1] for the fifth LIGO science run (S5). The search uses a noncoherent Hough-transform method to combine the information from coherent searches on time scales of about one day. Because these searches are very computationally intensive, they have been carried out with the Einstein@Home volunteer distributed computing project. Postprocessing identifies eight candidate signals; deeper follow-up studies rule them out. Hence, since no gravitational wave signals have been found, we report upper limits on the intrinsic gravitational wave strain amplitude h[subscript 0]. For example, in the 0.5 Hz-wide band at 152.5 Hz, we can exclude the presence of signals with h[subscript 0] greater than 7.6×10[superscript -25] at a 90% confidence level. This search is about a factor 3 more sensitive than the previous Einstein@Home search of early S5 LIGO data.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
LIGO (Observatory : Massachusetts Institute of Technology)
Terms of Use
Creative Commons Attribution 3.0
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevD.87.042001
