dc.identifier.uri |
http://dx.doi.org/10.15488/2581 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/2607 |
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dc.contributor.author |
Abbott, B.P.
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dc.contributor.author |
Adya, V.B.
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dc.contributor.author |
Affeldt, Christoph
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dc.contributor.author |
Allen, Bruce
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dc.contributor.author |
Ashton, G.
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dc.contributor.author |
Aufmuth, Peter
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dc.contributor.author |
Aulbert, C.
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dc.contributor.author |
Baune, C.
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dc.contributor.author |
Beer, C.
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dc.contributor.author |
Bergmann, G.
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dc.contributor.author |
Birnholtz, O.
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dc.contributor.author |
Bisht, A.
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dc.contributor.author |
Bock, O.
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dc.contributor.author |
Bode, N.
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dc.contributor.author |
Brinkmann, M.
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dc.contributor.author |
Cabero, M.
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dc.contributor.author |
Capano, C.D.
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dc.contributor.author |
Danilishin, S.L.
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dc.contributor.author |
Danzmann, Karsten
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dc.contributor.author |
Denker, T.
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dc.contributor.author |
Dent, T.
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dc.contributor.author |
Doravari, S.
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dc.contributor.author |
Drago, M.
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dc.contributor.author |
Eggenstein, H.-B.
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dc.contributor.author |
Fehrmann, H.
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dc.contributor.author |
Gabbard, H.
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dc.contributor.author |
Goetz, E.
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dc.contributor.author |
Grote, H.
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dc.contributor.author |
Hanke, M.M.
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dc.contributor.author |
Heurs, M.
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dc.contributor.author |
Hu, Y.M.
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dc.contributor.author |
Indik, N.
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dc.contributor.author |
Junker, J.
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dc.contributor.author |
Karvinen, K.S.
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dc.contributor.author |
Kaufer, S.
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dc.contributor.author |
Khan, S.
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dc.contributor.author |
Kirchhoff, R.
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dc.contributor.author |
Koch, P.
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dc.contributor.author |
Koehlenbeck, S.M.
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dc.contributor.author |
Krämer, C.
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dc.contributor.author |
Kringel, V.
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dc.contributor.author |
Krishnan, B.
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dc.contributor.author |
Kuehn, G.
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dc.contributor.author |
Lehmann, J.
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dc.contributor.author |
Lough, J.D.
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dc.contributor.author |
Lück, Harald
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dc.contributor.author |
Lundgren, A.P.
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dc.contributor.author |
Machenschalk, Bernd
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dc.contributor.author |
Meadors, G.D.
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dc.contributor.author |
Mukherjee, A.
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dc.contributor.author |
Nery, M.
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dc.contributor.author |
Nielsen, A.B.
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dc.contributor.author |
Nitz, A.
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dc.contributor.author |
Noack, A.
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dc.contributor.author |
Ohme, F.
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dc.contributor.author |
Oppermann, P.
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dc.contributor.author |
Papa, M.A.
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dc.contributor.author |
Post, A.
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dc.contributor.author |
Prijatelj, M.
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dc.contributor.author |
Prix, R.
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dc.contributor.author |
Puncken, O.
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dc.contributor.author |
Rüdiger, A.
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dc.contributor.author |
Salemi, F.
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dc.contributor.author |
Schmidt, J.
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dc.contributor.author |
Schreiber, E.
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dc.contributor.author |
Schuette, D.
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dc.contributor.author |
Schulte, B.W.
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dc.contributor.author |
Schutz, B.F.
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dc.contributor.author |
Singh, A.
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dc.contributor.author |
Steinke, M.
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dc.contributor.author |
Steinmeyer, D.
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dc.contributor.author |
Theeg, T.
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dc.contributor.author |
Vahlbruch, H.
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dc.contributor.author |
Wei, L.-W.
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dc.contributor.author |
Weinert, M.
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dc.contributor.author |
Wessels, P.
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dc.contributor.author |
Westphal, T.
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dc.contributor.author |
Wette, K.
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dc.contributor.author |
Willke, B.
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dc.contributor.author |
Wimmer, M.H.
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dc.contributor.author |
Winkler, W.
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dc.contributor.author |
Wittel, H.
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dc.contributor.author |
Woehler, J.
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dc.contributor.author |
Wu, D.S.
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dc.contributor.author |
et al.
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dc.date.accessioned |
2018-01-18T09:13:06Z |
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dc.date.available |
2018-01-18T09:13:06Z |
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dc.date.issued |
2017 |
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dc.identifier.citation |
Abbott, B.P. et al.: Upper Limits on Gravitational Waves from Scorpius X-1 from a Model-based Cross-correlation Search in Advanced LIGO Data. In: Astrophysical Journal 847 (2017), Nr. 1, 47. DOI: https://doi.org/10.3847/1538-4357/aa86f0 |
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dc.description.abstract |
We present the results of a semicoherent search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1, using data from the first Advanced LIGO observing run. The search method uses details of the modeled, parametrized continuous signal to combine coherently data separated by less than a specified coherence time, which can be adjusted to trade off sensitivity against computational cost. A search was conducted over the frequency range 25–$2000\,\mathrm{Hz}$, spanning the current observationally constrained range of binary orbital parameters. No significant detection candidates were found, and frequency-dependent upper limits were set using a combination of sensitivity estimates and simulated signal injections. The most stringent upper limit was set at $175\,\mathrm{Hz}$, with comparable limits set across the most sensitive frequency range from 100 to $200\,\mathrm{Hz}$. At this frequency, the 95% upper limit on the signal amplitude h 0 is $2.3\times {10}^{-25}$ marginalized over the unknown inclination angle of the neutron star's spin, and $8.0\times {10}^{-26}$ assuming the best orientation (which results in circularly polarized gravitational waves). These limits are a factor of 3–4 stronger than those set by other analyses of the same data, and a factor of ~7 stronger than the best upper limits set using data from Initial LIGO science runs. In the vicinity of $100\,\mathrm{Hz}$, the limits are a factor of between 1.2 and 3.5 above the predictions of the torque balance model, depending on the inclination angle; if the most likely inclination angle of 44° is assumed, they are within a factor of 1.7. |
eng |
dc.language.iso |
eng |
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dc.publisher |
Bristol : Institute of Physics Publishing |
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dc.relation.ispartofseries |
Astrophysical Journal 847 (2017), Nr. 1 |
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dc.rights |
CC BY 3.0 Unported |
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dc.rights.uri |
https://creativecommons.org/licenses/by/3.0/ |
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dc.subject |
accretion |
eng |
dc.subject |
accretion disks |
eng |
dc.subject |
gravitational waves |
eng |
dc.subject |
stars: neutron |
eng |
dc.subject |
X-rays: binaries |
eng |
dc.subject |
Gravitationswelle |
ger |
dc.subject.ddc |
530 | Physik
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ger |
dc.title |
Upper Limits on Gravitational Waves from Scorpius X-1 from a Model-based Cross-correlation Search in Advanced LIGO Data |
eng |
dc.type |
Article |
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dc.type |
Text |
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dc.relation.doi |
https://doi.org/10.3847/1538-4357/aa86f0 |
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dc.bibliographicCitation.issue |
1 |
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dc.bibliographicCitation.volume |
847 |
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dc.bibliographicCitation.firstPage |
47 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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