Details
| Originalsprache | undefiniert/unbekannt |
|---|---|
| Fachzeitschrift | Physical Review D |
| Jahrgang | 87 |
| Publikationsstatus | Veröffentlicht - 2013 |
Abstract
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in: Physical Review D, Jahrgang 87, 2013.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data
AU - The LIGO Scientific Collaboration
AU - Aasi, J.
AU - Abadie, J.
AU - Abbott, B. P.
AU - Abbott, R.
AU - Abbott, T. D.
AU - Abernathy, M.
AU - Accadia, T.
AU - Acernese, F.
AU - Adams, C.
AU - Adams, T.
AU - Addesso, P.
AU - Adhikari, R.
AU - Affeldt, C.
AU - Agathos, M.
AU - Agatsuma, K.
AU - Ajith, P.
AU - Allen, B.
AU - Allocca, A.
AU - Ceron, E. Amador
AU - Amariutei, D.
AU - Danilishin, S. L.
AU - Danzmann, K.
AU - Heurs, M.
AU - Hewitson, M.
AU - Kawazoe, F.
AU - Lück, H.
AU - Pöld, J.
AU - Shaltev, M.
AU - Vahlbruch, H.
AU - Wang, X.
AU - Wanner, A.
AU - Willke, B.
AU - Wittel, H.
AU - Yamamoto, K.
PY - 2013
Y1 - 2013
N2 - This paper presents results of an all-sky searches for periodic gravitational waves in the frequency range [50, 1190] Hz and with frequency derivative ranges of [-2 x 109, 1.1 x 1010] Hz/s for the fifth LIGO science run (S5). The novelty of the search lies in the use of a non-coherent technique based on the Hough-transform to combine the information from coherent searches on timescales of about one day. Because these searches are very computationally intensive, they have been deployed on the Einstein@Home distributed computing project infrastructure. The search presented here is about a factor 3 more sensitive than the previous Einstein@Home search in early S5 LIGO data. The post-processing has left us with eight surviving candidates. We show that deeper follow-up studies rule each of them out. Hence, since no statistically significant gravitational wave signals have been detected, we report upper limits on the intrinsic gravitational wave amplitude h0. For example, in the 0.5 Hz-wide band at 152.5 Hz, we can exclude the presence of signals with h0 greater than 7.6 x 1025 with a 90textpercent confidence level.
AB - This paper presents results of an all-sky searches for periodic gravitational waves in the frequency range [50, 1190] Hz and with frequency derivative ranges of [-2 x 109, 1.1 x 1010] Hz/s for the fifth LIGO science run (S5). The novelty of the search lies in the use of a non-coherent technique based on the Hough-transform to combine the information from coherent searches on timescales of about one day. Because these searches are very computationally intensive, they have been deployed on the Einstein@Home distributed computing project infrastructure. The search presented here is about a factor 3 more sensitive than the previous Einstein@Home search in early S5 LIGO data. The post-processing has left us with eight surviving candidates. We show that deeper follow-up studies rule each of them out. Hence, since no statistically significant gravitational wave signals have been detected, we report upper limits on the intrinsic gravitational wave amplitude h0. For example, in the 0.5 Hz-wide band at 152.5 Hz, we can exclude the presence of signals with h0 greater than 7.6 x 1025 with a 90textpercent confidence level.
U2 - 10.1103/PhysRevD.87.042001
DO - 10.1103/PhysRevD.87.042001
M3 - Article
VL - 87
JO - Physical Review D
JF - Physical Review D
SN - 0556-2821
ER -