Phys. Rev. D
72,
102004
(2005)
[22 pages]
First all-sky upper limits from LIGO on the strength of periodic gravitational waves using the Hough transform
B. Abbott et al. LIGO Scientific Collaboration
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B. Abbott12, R. Abbott15, R. Adhikari12, A. Ageev20,27, J. Agresti12, B. Allen39, J. Allen13, R. Amin16, S. B. Anderson12, W. G. Anderson29, M. Araya12, H. Armandula12, M. Ashley28, F. Asiri12,*, P. Aufmuth31, C. Aulbert1, S. Babak7, R. Balasubramanian7, S. Ballmer13, B. C. Barish12, C. Barker14, D. Barker14, M. Barnes12,†, B. Barr35, M. A. Barton12, K. Bayer13, R. Beausoleil26,‡, K. Belczynski23, R. Bennett35,§, S. J. Berukoff1,**, J. Betzwieser13, B. Bhawal12, I. A. Bilenko20, G. Billingsley12, E. Black12, K. Blackburn12, L. Blackburn13, B. Bland14, B. Bochner13,††, L. Bogue15, R. Bork12, S. Bose41, P. R. Brady39, V. B. Braginsky20, J. E. Brau37, D. A. Brown12, A. Bullington26, A. Bunkowski2,31, A. Buonanno6,‡‡, R. Burgess13, D. Busby12, W. E. Butler38, R. L. Byer26, L. Cadonati13, G. Cagnoli35, J. B. Camp21, J. Cannizzo21, K. Cannon39, C. A. Cantley35, L. Cardenas12, K. Carter15, M. M. Casey35, J. Castiglione34, A. Chandler12, J. Chapsky12,†, P. Charlton12,a, S. Chatterji12, S. Chelkowski2,31, Y. Chen1, V. Chickarmane16,b, D. Chin36, N. Christensen8, D. Churches7, T. Cokelaer7, C. Colacino33, R. Coldwell34, M. Coles15,c, D. Cook14, T. Corbitt13, D. Coyne12, J. D. E. Creighton39, T. D. Creighton12, D. R. M. Crooks35, P. Csatorday13, B. J. Cusack3, C. Cutler1, J. Dalrymple27, E. D’Ambrosio12, K. Danzmann31,2, G. Davies7, E. Daw16,d, D. DeBra26, T. Delker34,e, V. Dergachev36, S. Desai28, R. DeSalvo12, S. Dhurandhar11, A. Di Credico27, M. Díaz29, H. Ding12, R. W. P. Drever4, R. J. Dupuis12, J. A. Edlund12,†, P. Ehrens12, E. J. Elliffe35, T. Etzel12, M. Evans12, T. Evans15, S. Fairhurst39, C. Fallnich31, D. Farnham12, M. M. Fejer26, T. Findley25, M. Fine12, L. S. Finn28, K. Y. Franzen34, A. Freise2,f, R. Frey37, P. Fritschel13, V. V. Frolov15, M. Fyffe15, K. S. Ganezer5, J. Garofoli14, J. A. Giaime16, A. Gillespie12,g, K. Goda13, L. Goggin12, G. González16, S. Goßler31, P. Grandclément23,h, A. Grant35, C. Gray14, A. M. Gretarsson15,i, D. Grimmett12, H. Grote2, S. Grunewald1, M. Guenther14, E. Gustafson26,j, R. Gustafson36, W. O. Hamilton16, M. Hammond15, J. Hanson15, C. Hardham26, J. Harms19, G. Harry13, A. Hartunian12, J. Heefner12, Y. Hefetz13, G. Heinzel2, I. S. Heng31, M. Hennessy26, N. Hepler28, A. Heptonstall35, M. Heurs31, M. Hewitson2, S. Hild2, N. Hindman14, P. Hoang12, J. Hough35, M. Hrynevych12,k, W. Hua26, M. Ito37, Y. Itoh1, A. Ivanov12, O. Jennrich35,l, B. Johnson14, W. W. Johnson16, W. R. Johnston29, D. I. Jones28, G. Jones7, L. Jones12, D. Jungwirth12,m, V. Kalogera23, E. Katsavounidis13, K. Kawabe14, S. Kawamura22, W. Kells12, J. Kern15,n, A. Khan15, S. Killbourn35, C. J. Killow35, C. Kim23, C. King12, P. King12, S. Klimenko34, S. Koranda39, K. Kötter31, J. Kovalik15,†, D. Kozak12, B. Krishnan1, M. Landry14, J. Langdale15, B. Lantz26, R. Lawrence13, A. Lazzarini12, M. Lei12, I. Leonor37, K. Libbrecht12, A. Libson8, P. Lindquist12, S. Liu12, J. Logan12,o, M. Lormand15, M. Lubinski14, H. Lück31,2, M. Luna32, T. T. Lyons12,o, B. Machenschalk1, M. MacInnis13, M. Mageswaran12, K. Mailand12, W. Majid12,†, M. Malec2,31, V. Mandic12, F. Mann12, A. Marin13,p, S. Márka9,q, E. Maros12, J. Mason12,r, K. Mason13, O. Matherny14, L. Matone9, N. Mavalvala13, R. McCarthy14, D. E. McClelland3, M. McHugh18, J. W. C. McNabb28, A. Melissinos38, G. Mendell14, R. A. Mercer33, S. Meshkov12, E. Messaritaki39, C. Messenger33, E. Mikhailov13, S. Mitra11, V. P. Mitrofanov20, G. Mitselmakher34, R. Mittleman13, O. Miyakawa12, S. Miyoki12,s, S. Mohanty29, G. Moreno14, K. Mossavi2, G. Mueller34, S. Mukherjee29, P. Murray35, E. Myers40, J. Myers14, S. Nagano2, T. Nash12, R. Nayak11, G. Newton35, F. Nocera12, J. S. Noel41, P. Nutzman23, T. Olson24, B. O’Reilly15, D. J. Ottaway13, A. Ottewill39,t, D. Ouimette12,m, H. Overmier15, B. J. Owen28, Y. Pan6, M. A. Papa1, V. Parameshwaraiah14, A. Parameswaran2, C. Parameswariah15, M. Pedraza12, S. Penn10, M. Pitkin35, M. Plissi35, R. Prix1, V. Quetschke34, F. Raab14, H. Radkins14, R. Rahkola37, M. Rakhmanov34, S. R. Rao12, K. Rawlins13, S. Ray-Majumder39, V. Re33, D. Redding12,†, M. W. Regehr12,†, T. Regimbau7, S. Reid35, K. T. Reilly12, K. Reithmaier12, D. H. Reitze34, S. Richman13,u, R. Riesen15, K. Riles36, B. Rivera14, A. Rizzi15,v, D. I. Robertson35, N. A. Robertson26,35, C. Robinson7, L. Robison12, S. Roddy15, A. Rodriguez16, J. Rollins9, J. D. Romano7, J. Romie12, H. Rong34,g, D. Rose12, E. Rotthoff28, S. Rowan35, A. Rüdiger2, L. Ruet13, P. Russell12, K. Ryan14, I. Salzman12, V. Sandberg14, G. H. Sanders12,w, V. Sannibale12, P. Sarin13, B. Sathyaprakash7, P. R. Saulson27, R. Savage14, A. Sazonov34, R. Schilling2, K. Schlaufman28, V. Schmidt12,x, R. Schnabel19, R. Schofield37, B. F. Schutz1,7, P. Schwinberg14, S. M. Scott3, S. E. Seader41, A. C. Searle3, B. Sears12, S. Seel12, F. Seifert19, D. Sellers15, A. S. Sengupta11, C. A. Shapiro28,y, P. Shawhan12, D. H. Shoemaker13, Q. Z. Shu34,z, A. Sibley15, X. Siemens39, L. Sievers12,†, D. Sigg14, A. M. Sintes1,32, J. R. Smith2, M. Smith13, M. R. Smith12, P. H. Sneddon35, R. Spero12,†, O. Spjeld15, G. Stapfer15, D. Steussy8, K. A. Strain35, D. Strom37, A. Stuver28, T. Summerscales28, M. C. Sumner12, M. Sung16, P. J. Sutton12, J. Sylvestre12,, A. Takamori12,, D. B. Tanner34, H. Tariq12, I. Taylor7, R. Taylor35, R. Taylor12, K. A. Thorne28, K. S. Thorne6, M. Tibbits28, S. Tilav12,, M. Tinto4,†, K. V. Tokmakov20, C. Torres29, C. Torrie12, G. Traylor15, W. Tyler12, D. Ugolini30, C. Ungarelli33, M. Vallisneri6,, M. van Putten13, S. Vass12, A. Vecchio33, J. Veitch35, C. Vorvick14, S. P. Vyachanin20, L. Wallace12, H. Walther19, H. Ward35, R. Ward12, B. Ware12,†, K. Watts15, D. Webber12, A. Weidner19,2, U. Weiland31, A. Weinstein12, R. Weiss13, H. Welling31, L. Wen1, S. Wen16, K. Wette3, J. T. Whelan18, S. E. Whitcomb12, B. F. Whiting34, S. Wiley5, C. Wilkinson14, P. A. Willems12, P. R. Williams1,, R. Williams4, B. Willke31,2, A. Wilson12, B. J. Winjum28,**, W. Winkler2, S. Wise34, A. G. Wiseman39, G. Woan35, D. Woods39, R. Wooley15, J. Worden14, W. Wu34, I. Yakushin15, H. Yamamoto12, S. Yoshida25, K. D. Zaleski28, M. Zanolin13, I. Zawischa31,, L. Zhang12, R. Zhu1, N. Zotov17, M. Zucker15, and J. Zweizig12 (LIGO Scientific Collaboration)
1Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Golm, Germany 2Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany 3Australian National University, Canberra, 0200, Australia 4California Institute of Technology, Pasadena, California 91125, USA 5California State University Dominguez Hills, Carson, California 90747, USA 6Caltech-CaRT, Pasadena, California 91125, USA 7Cardiff University, Cardiff, CF2 3YB, United Kingdom 8Carleton College, Northfield, Minnesota 55057, USA 9Columbia University, New York, New York 10027, USA 10Hobart and William Smith Colleges, Geneva, New York 14456, USA 11Inter-University Centre for Astronomy and Astrophysics, Pune–411007, India 12LIGO—California Institute of Technology, Pasadena, California 91125, USA 13LIGO—Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA 14LIGO Hanford Observatory, Richland, Washington 99352, USA 15LIGO Livingston Observatory, Livingston, Louisiana 70754, USA 16Louisiana State University, Baton Rouge, Louisiana 70803, USA 17Louisiana Tech University, Ruston, Louisiana 71272, USA 18Loyola University, New Orleans, Louisiana 70118, USA 19Max Planck Institut für Quantenoptik, D-85748, Garching, Germany 20Moscow State University, Moscow, 119992, Russia 21NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771, USA 22National Astronomical Observatory of Japan, Tokyo 181-8588, Japan 23Northwestern University, Evanston, Illinois 60208, USA 24Salish Kootenai College, Pablo, Montana 59855, USA 25Southeastern Louisiana University, Hammond, Louisiana 70402, USA 26Stanford University, Stanford, California 94305, USA 27Syracuse University, Syracuse, New York 13244, USA 28The Pennsylvania State University, University Park, Pennsylvania 16802, USA 29The University of Texas at Brownsville and Texas Southmost College, Brownsville, Texas 78520, USA 30Trinity University, San Antonio, Texas 78212, USA 31Universität Hannover, D-30167 Hannover, Germany 32Universitat de les Illes Balears, E-07122 Palma de Mallorca, Spain 33University of Birmingham, Birmingham, B15 2TT, United Kingdom 34University of Florida, Gainesville, Florida 32611, USA 35University of Glasgow, Glasgow, G12 8QQ, United Kingdom 36University of Michigan, Ann Arbor, Michigan 48109, USA 37University of Oregon, Eugene, Oregon 97403, USA 38University of Rochester, Rochester, New York 14627, USA 39University of Wisconsin–Milwaukee, Milwaukee, Wisconsin 53201, USA 40Vassar College, Poughkeepsie, New York 12604, USA 41Washington State University, Pullman, Washington 99164, USA
Received 13 September 2005; published 28 November 2005
We perform a wide parameter-space search for continuous gravitational waves over the whole sky and over a large range of values of the frequency and the first spin-down parameter. Our search method is based on the Hough transform, which is a semicoherent, computationally efficient, and robust pattern recognition technique. We apply this technique to data from the second science run of the LIGO detectors and our final results are all-sky upper limits on the strength of gravitational waves emitted by unknown isolated spinning neutron stars on a set of narrow frequency bands in the range 200–400 Hz. The best upper limit on the gravitational-wave strain amplitude that we obtain in this frequency range is 4.43×10-23.
© 2005 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.72.102004
DOI:
10.1103/PhysRevD.72.102004
PACS:
04.80.Nn, 07.05.Kf, 95.55.Ym, 97.60.Gb
*Present address: Stanford Linear Accelerator Center. †Present address: Jet Propulsion Laboratory. ‡Permanent address: HP Laboratories. §Present address: Rutherford Appleton Laboratory. **Present address: University of California, Los Angeles. ††Present address: Hofstra University. ‡‡Permanent address: GReCO, Institut d’Astrophysique de Paris (CNRS). aPresent address: Charles Sturt University, Australia. bPresent address: Keck Graduate Institute. cPresent address: National Science Foundation. dPresent address: University of Sheffield. ePresent address: Ball Aerospace Corporation. fPresent address: European Gravitational Observatory. gPresent address: Intel Corp.. hPresent address: University of Tours, France. iPresent address: Embry-Riddle Aeronautical University. jPresent address: Lightconnect Inc.. kPresent address: W.M. Keck Observatory. lPresent address: ESA Science and Technology Center. mPresent address: Raytheon Corporation. nPresent address: New Mexico Institute of Mining and Technology/Magdalena Ridge Observatory Interferometer. oPresent address: Mission Research Corporation. pPresent address: Harvard University. qPermanent address: Columbia University. rPresent address: Lockheed-Martin Corporation. sPermanent address: University of Tokyo, Institute for Cosmic Ray Research. tPermanent address: University College Dublin. uPresent address: Research Electro-Optics Inc.. vPresent address: Institute of Advanced Physics, Baton Rouge, LA. wPresent address: Thirty Meter Telescope Project at Caltech. xPresent address: European Commission, DG Research, Brussels, Belgium. yPresent address: University of Chicago. zPresent address: LightBit Corporation. Permanent address: IBM Canada Ltd.. Present address: The University of Tokyo. Present address: University of Delaware. Permanent address: Jet Propulsion Laboratory. Present address: Shanghai Astronomical Observatory. Present address: Laser Zentrum Hannover. Electronic address: http://www.ligo.org.
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