TY - JOUR
T1 - Directional Limits on Persistent Gravitational Waves Using LIGO S5 Science Data
AU - Abadie, J.
AU - Abbott, B.P.
AU - Abbott, R.
AU - Abernathy, M.
AU - Accadia, T.
AU - Acernese, F.
AU - Adams, C.
AU - Adhikari, R.
AU - Ajith, P.
AU - Allen, B.
AU - Allen, G.S.
AU - Ceron, E.A.
AU - Amin, R.S.
AU - Anderson, S.B.
AU - Anderson, W.G.
AU - Antonucci, F.
AU - Arain, M.A.
AU - Araya, M.C.
AU - Aronsson, M.
AU - Arun, K.G.
AU - Aso, Y.
AU - Aston, S.M.
AU - Astone, P.
AU - Atkinson, D.
AU - Aufmuth, P.
AU - Aulbert, C.
AU - Babak, S.
AU - Baker, P.
AU - Ballardin, G.
AU - Ballmer, S.
AU - Barker, D.
AU - Barnum, S.
AU - Barone, F.
AU - Barr, B.
AU - Barriga, P.
AU - Barsotti, L.
AU - Barsuglia, M.
AU - Barton, M.A.
AU - Bartos, I.
AU - Bassiri, R.
AU - Bastarrika, M.
AU - Bauchrowitz, J.
AU - Bauer, T.S.
AU - Behnke, B.
AU - Beker, M.G.
AU - Belletoile, A.
AU - Danilishin, S.L.
AU - Hild, S.
AU - Steinlechner, S.
AU - van den Brand, J.F.J.
AU - LIGO Scientific Collaboration
AU - Virgo Collaboration
PY - 2011/12/29
Y1 - 2011/12/29
N2 - The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2 - 20 x 10(-50) strain(2) Hz(-1) and 5 - 35 x 10(-49) strain(2) Hz(-1) sr(-1) for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as approximate to 7 - 10(-25) in the most sensitive frequency range near 160 Hz.
AB - The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2 - 20 x 10(-50) strain(2) Hz(-1) and 5 - 35 x 10(-49) strain(2) Hz(-1) sr(-1) for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as approximate to 7 - 10(-25) in the most sensitive frequency range near 160 Hz.
KW - SPECTRUM
U2 - 10.1103/PhysRevLett.107.271102
DO - 10.1103/PhysRevLett.107.271102
M3 - Article
SN - 0031-9007
VL - 107
JO - Physical Review Letters
JF - Physical Review Letters
IS - 27
M1 - 271102
ER -