Searches for periodic gravitational waves from unknown isolated sources and Scorpius X-1: Results from the second LIGO science run

B P Abbott ,M Macinnis,A C Searle,S J Berukoff,E D’Ambrosio,D Sellers,T Regimbau,L Blackburn,B O’Reilly,K Somiya,P Kalmus,H Rehbein,A Ivanov,P Shawhan,L Sancho De La Jordana,J Markowitz,K Kokeyama,J Worden,P R Saulson,N Christensen,B Krishnan,P T Beyersdorf,D Hoyland,I Yakushin,M Guenther,M Mchugh,K Kawabe,M Landry,A Bullington,D Barker,G Mendell,J Greenhalgh,V Pierro,K Carter,M Hewitson,D E Mcclelland,J Logan,G Castaldi,R Abbott,A S Sengupta,C Torres,A Libson,L S Finn,L Wallace,L Matone,A Dietz,D J Ottaway,J T Whelan,V Re,R Prix,D R M Crooks,J N Marx,C Zhao,E E Doomes,D Ugolini,H Vahlbruch,S H Huttner,A Rüdiger,M A Barton,S Reid,P Russell,V Dergachev,D Sigg,A Franzen,S C Mcguire,R Mittleman,T Z Summerscales,E Maros,G Woan,I S Heng,L Cadonati,X Siemens,V Mandic,M Lei,B Barr,D Hoak,B Lantz,B Willke,R Schnabel,N Fotopoulos,S Babak,A Sibley,B Rivera,Y Chen,M Weinert,S E Whitcomb,H Overmier,P Fritschel,I Gholami,M Pitkin,J Degallaix,S Nagano,D Busby,K D Zaleski,H Radkins,F Chiadini,K A Strain,V Parameshwaraiah,A Weidner,H Ward,R O’Shaughnessy,B Machenschalk,A Di Credico,S Saraf,K Watts,D B Tanner,M Ramsunder,S Giampanis,D Debra,M Varvella,E Innerhofer,M Fyffe,A Bunkowski,T Etzel,M A Papa,K D Giardina,G H Sanders,W Kells,C Wilkinson,S Gras,P Csatorday,A Freise,M Sung,L M Goggin,J Myers,W Tyler,R Amin,A Cumming,B J Owen,C Ungarelli,B Lee,P Aufmuth,R Wooley,C Gray,N Zotov,K Rawlins,E Chin,C J Killow,V B Braginsky,S P Vyachanin,V Leonhardt,R Conte,M Mageswaran,P A Willems,J Harms,O Miyakawa,K Ryan,V P Mitrofanov,S Wiley,J Veitch,R Desalvo,F Nocera,R Grosso,R Bork,C Van Den Broeck,P Ehrens,L Ribichini,S Mitra,V Kondrashov,S Penn,L Cardenas,K Y Franzen,P J Sutton,J Heefner,M Coles,H Lück,P Lindquist,K Mason,S Richman,O Jennrich,D A Brown,C Aulbert,P Nutzman,B C Barish,S Sakata,M R Smith,S Márka,R Jones,S Yoshida,P Schwinberg,J R Smith,T Meier,K V Tokmakov,E Black,H Bantilan,S Wise,J Bogenstahl,N A Lockerbie,J Leiner,J Garofoli,S Rowan,L Bogue,M Heurs,E Katsavounidis,A Nishizawa,M Tarallo,A Buonanno,C N Colacino,K Riles,K Mailand,L Zhang,V Kalogera,N A Robertson,H Ding,E L Robison,B F Whiting,T Nash,E Hirose,S B Anderson,C Vorvick,J G Dwyer,G Newton,J Betzwieser,S Desai,K Bayer,R Weiss,J Zweizig,C Barker,B J J Slagmolen,E Messaritaki,J B Camp,S Meshkov,S Wen,W W Johnson,L Williams,J A Giaime,D Cook,D G Keppel,P Kwee,D Mudge,V Sannibale,A M Sintes,M Degree,J D Romano,K Blackburn,K Wette,R Gustafson,K S Ganezer,J D E Creighton,A Grant,D Fazi,W G Anderson,V Quetschke,A Takamori,J Dickson,C C Wipf,S Fairhurst,A M Cruise,V Boschi,D I Jones,V Fiumara,A Vecchio,G Moreno,B Bland,A Thüring,B Johnson,T Demma,D Meyers,N Mavalvala,J Zhang,L Wen,P Charlton,G Mitselmakher,W Wu,S Roddy,E Chalkey,C Parameswariah,H Grote,H Armandula,S M Scott,M Rakhmanov,R Mccarthy,I M Pinto,I A Bilenko,S Klimenko,D H Reitze,B Blair,M Longo,S Chelkowski,G Cagnoli,B Sears,Z Yan,P Patel,R A Mercer,M Van Putten,M Samidi,R Route,S Sato,R J Dupuis,J Agresti,T Delker,F Postiglione,C A Cantley,D Chin,G Diederichs,S Chatterji,M Zanolin,J S Kissell,R Rahkola,O Burmeister,K Mossavi,K A Thorne,M M Casey,Y Itoh,B Allen,P Sarin,C Kim,R P Croce,R Biswas,J Slutsky,F Kawazoe,T Hayler,S Dhurandhar,M V Plissi,P R Brady,A M Gretarsson,M Lormand,E Goetz,S Sinha,D Woods,S J Waldman,W Winkler,D Jackrel,J Hanson,I Leonor,C Hanna,K Danzmann,M Evans,T D Creighton,J Hough,S Vass,C Cepeda,M Trias,P Savov,A Sazonov,B Bhawal,M Brinkmann,V Sandberg,H Yamamoto,A Moylan,G Billingsley,S Hild,G Mueller,B F Schutz,G Traylor,D H Shoemaker,A M Rogan,B Hage,A Lazzarini,R Schilling,E Myers,J E Brau,M Pedraza,M Malec,M M Fejer,R Frey,P Ajith,Y Pan,S Bose,P Barriga,R W P Drever,N Rainer,F Seifert,A Villar,Y Fan,M A Arain ,Gareth Jones ,R M S Schofield ,J Münch ,T R Corbitt ,William R Johnston ,B S Sathyaprakash ,David Webber ,Soma Mukherjee ,Vincenzo Matta ,J K Cannizzo ,R Kopparapu ,M C Díaz ,Haisheng Rong ,A F Brooks ,E D Harstad ,Krzysztof Belczyński ,Vincenzo Galdi ,E J Daw ,M C B Ashley ,Alan Wiseman ,D S Rabeling ,Kip S Thorne ,J G Rollins ,C I Torrie ,A Rodríguez ,C M Mow–Lowry ,I W Martin ,Curt Cutler ,C R Robinson ,P Cochrane ,H J Pletsch ,Eduardo Espinoza ,Natalie E Strand ,R L Savage ,S M Aston ,K C Cannon ,Rolf Riesen ,Ian Wilmut ,J C Dumas ,J A Clark ,D R Ingram ,Kenneth G Libbrecht ,D J Hosken ,Massimo Tinto ,J H Chow ,Thomas Cokelaer ,F Y Khalili ,P J Veitch ,S Ray‐Majumder ,Adrian C Melissinos ,James Dalrymple ,R L Coldwell ,D C Coyne ,J W Mcnabb ,Masahiro Ito ,Gabriela González ,Sascha Schediwy ,John A Sidles ,Stefano Maranò ,Kirk Mckenzie ,Peter King ,S T Mcwilliams ,Е Е Михайлов ,A L Stuver ,D A Hammer ,S W Ballmer ,Seiji Kawamura ,Robert L Byer ,A W Heptonstall ,Junwei Cao ,S Grünewald ,M E Zucker ,A J Weinstein ,E J Howell ,William E Butler ,D B Kozak ,Heribert Mühlen ,G S Davies ,Julien Sylvestre ,В В Фролов ,M Łubiński ,R X Adhikari ,P G Murray ,Nicolás Yunes ,Laurent Ruet ,John G Thacker ,D M Coward ,Karel Urbánek ,Kenji Numata ,D M Whitbeck ,F J Raab ,Keisuke Goda ,G M Harry ,Dimitri Kasprzyk ,S D Mohanty ,D Strom ,Michele Vallisneri ,T T Fricke ,M C Araya ,Gerhard Heinzel ,Malcolm B Gray ,H Müller‐Ebhardt ,J H Romie ,K X Sun ,Ju Li ,R L Ward ,C Messenger ,T M Evans ,Hideya Takahashi ,S Goßler ,Ping Koy Lam ,Robert W Taylor

doi:10.1103/physrevd.76.082001

Abstract

We carry out two searches for periodic gravitational waves using the most sensitive few hours of data from the second LIGO science run. The first search is targeted at isolated, previously unknown neutron stars and covers the entire sky in the frequency band 160-728.8 Hz. The second search targets the accreting neutron star in the low-mass X-ray binary Scorpius X-1, covers the frequency bands 464-484 Hz and 604-624 Hz, and two binary orbit parameters. Both searches look for coincidences between the Livingston and Hanford 4-km interferometers. For isolated neutron stars our 95% confidence upper limits on the gravitational wave strain amplitude range from 6.6E-23 to 1E-21 across the frequency band; For Scorpius X-1 they range from 1.7E-22 to 1.3E-21 across the two 20-Hz frequency bands. The upper limits presented in this paper are the first broad-band wide parameter space upper limits on periodic gravitational waves using coherent search techniques. The methods developed here lay the foundations for upcoming hierarchical searches of more sensitive data which may detect astrophysical signals.

Full Text