@article{061c497de69d4d40a34d2460149003c0,
title = "Search for gravitational wave radiation associated with the pulsating tail of the SGR 1806-20 hyperflare of 27 December 2004 using LIGO",
abstract = "We have searched for gravitational waves (GWs) associated with the SGR 1806-20 hyperflare of 27 December 2004. This event, originating from a Galactic neutron star, displayed exceptional energetics. Recent investigations of the x-ray light curve's pulsating tail revealed the presence of quasiperiodic oscillations (QPOs) in the 30-2000 Hz frequency range, most of which coincides with the bandwidth of the LIGO detectors. These QPOs, with well-characterized frequencies, can plausibly be attributed to seismic modes of the neutron star which could emit GWs. Our search targeted potential quasimonochromatic GWs lasting for tens of seconds and emitted at the QPO frequencies. We have observed no candidate signals above a predetermined threshold, and our lowest upper limit was set by the 92.5 Hz QPO observed in the interval from 150 s to 260 s after the start of the flare. This bound corresponds to a (90% confidence) root-sum-squared amplitude hrss-det 90%=4.5×10-22strainHz-1/2 on the GW waveform strength in the detectable polarization state reaching our Hanford (WA) 4 km detector. We illustrate the astrophysical significance of the result via an estimated characteristic energy in GW emission that we would expect to be able to detect. The above result corresponds to 7.7×1046erg (=4.3×10-8M c2), which is of the same order as the total (isotropic) energy emitted in the electromagnetic spectrum. This result provides a means to probe the energy reservoir of the source with the best upper limit on the GW waveform strength published and represents the first broadband asteroseismology measurement using a GW detector.",
author = "{LIGO Scientific Collaboration} and B. Abbott and R. Abbott and R. Adhikari and J. Agresti and P. Ajith and B. Allen and R. Amin and Anderson, {S. B.} and Anderson, {W. G.} and M. Arain and M. Araya and H. Armandula and M. Ashley and S. Aston and P. Aufmuth and C. Aulbert and S. Babak and S. Ballmer and H. Bantilan and Barish, {B. C.} and C. Barker and D. Barker and B. Barr and P. Barriga and Barton, {M. A.} and K. Bayer and K. Belczynski and J. Betzwieser and Beyersdorf, {P. T.} and B. Bhawal and Bilenko, {I. A.} and G. Billingsley and R. Biswas and E. Black and K. Blackburn and L. Blackburn and D. Blair and B. Bland and J. Bogenstahl and L. Bogue and R. Bork and V. Boschi and S. Bose and Brady, {P. R.} and Braginsky, {V. B.} and Brau, {J. E.} and M. Brinkmann and A. Brooks and Brown, {D. A.} and A. Bullington and A. Bunkowski and A. Buonanno and O. Burmeister and D. Busby and Byer, {R. L.} and L. Cadonati and G. Cagnoli and Camp, {J. B.} and J. Cannizzo and K. Cannon and Cantley, {C. A.} and J. Cao and L. Cardenas and Casey, {M. M.} and G. Castaldi and C. Cepeda and E. Chalkey and P. Charlton and S. Chatterji and S. Chelkowski and Y. Chen and F. Chiadini and D. Chin and E. Chin and J. Chow and N. Christensen and J. Clark and P. Cochrane and T. Cokelaer and Colacino, {C. N.} and R. Coldwell and R. Conte and D. Cook and T. Corbitt and D. Coward and D. Coyne and Creighton, {J. D.E.} and Creighton, {T. D.} and Croce, {R. P.} and Crooks, {D. R.M.} and Cruise, {A. M.} and A. Cumming and J. Dalrymple and E. D'Ambrosio and K. Danzmann and G. Davies and D. DeBra and J. Degallaix and M. Degree and T. Demma and V. Dergachev and S. Desai and R. DeSalvo and S. Dhurandhar and M. D{\'i}az and J. Dickson and {Di Credico}, A. and G. Diederichs and A. Dietz and Doomes, {E. E.} and Drever, {R. W.P.} and Dumas, {J. C.} and Dupuis, {R. J.} and Dwyer, {J. G.} and P. Ehrens and E. Espinoza and T. Etzel and M. Evans and T. Evans and S. Fairhurst and Y. Fan and D. Fazi and Fejer, {M. M.} and Finn, {L. S.} and V. Fiumara and N. Fotopoulos and A. Franzen and Franzen, {K. Y.} and A. Freise and R. Frey and T. Fricke and P. Fritschel and Frolov, {V. V.} and M. Fyffe and V. Galdi and J. Garofoli and I. Gholami and Giaime, {J. A.} and S. Giampanis and Giardina, {K. D.} and K. Goda and E. Goetz and L. Goggin and G. Gonz{\'a}lez and S. Gossler and A. Grant and S. Gras and C. Gray and M. Gray and J. Greenhalgh and Gretarsson, {A. M.} and R. Grosso and H. Grote and S. Grunewald and M. Guenther and R. Gustafson and B. Hage and D. Hammer and C. Hanna and J. Hanson and J. Harms and G. Harry and E. Harstad and T. Hayler and J. Heefner and Heng, {I. S.} and A. Heptonstall and M. Heurs and M. Hewitson and S. Hild and E. Hirose and D. Hoak and D. Hosken and J. Hough and E. Howell and D. Hoyland and Huttner, {S. H.} and D. Ingram and E. Innerhofer and M. Ito and Y. Itoh and A. Ivanov and D. Jackrel and B. Johnson and Johnson, {W. W.} and Jones, {D. I.} and G. Jones and R. Jones and L. Ju and P. Kalmus and V. Kalogera and S. Kamat and D. Kasprzyk and E. Katsavounidis and K. Kawabe and S. Kawamura and F. Kawazoe and W. Kells and Keppel, {D. G.} and Khalili, {F. Ya} and C. Kim and P. King and Kissel, {J. S.} and S. Klimenko and K. Kokeyama and V. Kondrashov and Kopparapu, {R. K.} and D. Kozak and B. Krishnan and P. Kwee and Lam, {P. K.} and M. Landry and B. Lantz and A. Lazzarini and B. Lee and M. Lei and J. Leiner and V. Leonhardt and I. Leonor and K. Libbrecht and P. Lindquist and Lockerbie, {N. A.} and M. Longo and M. Lormand and M. Lubinski and H. L{\"u}ck and B. Machenschalk and M. MacInnis and M. Mageswaran and K. Mailand and M. Malec and V. Mandic and S. Marano and S. M{\'a}rka and J. Markowitz and E. Maros and I. Martin and Marx, {J. N.} and K. Mason and L. Matone and V. Matta and N. Mavalvala and R. McCarthy and McClelland, {D. E.} and McGuire, {S. C.} and M. McHugh and K. McKenzie and McNabb, {J. W.C.} and S. McWilliams and T. Meier",
year = "2007",
month = sep,
day = "15",
doi = "10.1103/PhysRevD.76.062003",
language = "English",
volume = "76",
journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",
issn = "1550-7998",
publisher = "American Physical Society",
number = "6",
}