Einstein@Home search for periodic gravitational waves in early S5 LIGO data

被引：78

作者：

Abbott, B. P. ^{[1
]}

Abbott, R. ^{[1
]}

Adhikari, R. ^{[1
]}

Ajith, P. ^{[2
]}

Allen, B. ^{[2
,57
]}

Allen, G. ^{[34
]}

Amin, R. S. ^{[21
]}

Anderson, S. B. ^{[1
]}

Anderson, W. G. ^{[57
]}

Arain, M. A. ^{[45
]}

Araya, M. ^{[1
]}

Armandula, H. ^{[1
,28
]}

Armor, P. ^{[57
]}

Aso, Y. ^{[1
]}

Aston, S. ^{[62
]}

Aufmuth, P. ^{[16
]}

Aulbert, C. ^{[2
]}

Babak, S. ^{[17
]}

Baker, P. ^{[24
]}

Ballmer, S. ^{[1
]}

Barker, C. ^{[18
]}

Barker, D. ^{[18
]}

Barr, B. ^{[46
]}

Barriga, P. ^{[56
]}

Barsotti, L. ^{[20
]}

Barton, M. A. ^{[1
]}

Bartos, I. ^{[10
]}

Bassiri, R. ^{[46
]}

Bastarrika, M. ^{[46
]}

Behnke, B. ^{[17
]}

Benacquista, M. ^{[41
]}

Betzwieser, J. ^{[1
]}

Beyersdorf, P. T. ^{[30
]}

Bilenko, I. A. ^{[25
]}

Billingsley, G. ^{[1
]}

Biswas, R. ^{[57
]}

Black, E. ^{[1
]}

Blackburn, J. K. ^{[1
]}

Blackburn, L. ^{[20
]}

Blair, D. ^{[56
]}

Bland, B. ^{[18
]}

Bodiya, T. P. ^{[20
]}

Bogue, L. ^{[19
]}

Bork, R. ^{[1
]}

Boschi, V. ^{[1
]}

Bose, S. ^{[58
]}

Brady, P. R. ^{[57
]}

Braginsky, V. B. ^{[25
]}

Brau, J. E. ^{[51
]}

Bridges, D. O. ^{[19
]}

机构：

[1] CALTECH, LIGO, Pasadena, CA 91125 USA

[2] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-30167 Hannover, Germany

[3] Andrews Univ, Berrien Springs, MI 49104 USA

[4] Australian Natl Univ, Canberra, ACT 0200, Australia

[5] CALTECH, Pasadena, CA 91125 USA

[6] Cardiff Univ, Cardiff CF24 3AA, Wales

[7] CALTECH, CaRT, Pasadena, CA 91125 USA

[8] Carleton Coll, Northfield, MN 55057 USA

[9] Charles Sturt Univ, Wagga Wagga, NSW 2678, Australia

[10] Columbia Univ, New York, NY 10027 USA

[11] Embry Riddle Aeronaut Univ, Prescott, AZ 86301 USA

[12] Eotvos Lorand Univ, ELTE, H-1053 Budapest, Hungary

[13] Hobart & William Smith Coll, Geneva, NY 14456 USA

[14] Inst Appl Phys, Nizhnii Novgorod 603950, Russia

[15] Inter Univ, Ctr Astron & Astrophys, Pune 411007, Maharashtra, India

[16] Leibniz Univ Hannover, D-30167 Hannover, Germany

[17] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-14476 Golm, Germany

[18] LIGO Hanford Observ, Richland, WA 99352 USA

[19] LIGO Livingston Observ, Livingston, LA 70754 USA

[20] LIGO Massachusetts Inst Technol, Cambridge, MA 02139 USA

[21] Louisiana State Univ, Baton Rouge, LA 70803 USA

[22] Louisiana Tech Univ, Ruston, LA 71272 USA

[23] Loyola Univ, New Orleans, LA 70118 USA

[24] Montana State Univ, Bozeman, MT 59717 USA

[25] Moscow MV Lomonosov State Univ, Moscow 119992, Russia

[26] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[27] Natl Astron Observ Japan, Tokyo 1818588, Japan

[28] Northwestern Univ, Evanston, IL 60208 USA

[29] Rochester Inst Technol, Rochester, NY 14623 USA

[30] San Jose State Univ, San Jose, CA 95192 USA

[31] Sonoma State Univ, Rohnert Pk, CA 94928 USA

[32] SE Louisiana Univ, Hammond, LA 70402 USA

[33] Southern Univ, Baton Rouge, LA 70813 USA

[34] Stanford Univ, Stanford, CA 94305 USA

[35] Syracuse Univ, Syracuse, NY 13244 USA

[36] Penn State Univ, University Pk, PA 16802 USA

[37] Univ Melbourne, Parkville, Vic 3010, Australia

[38] Univ Mississippi, University, MS 38677 USA

[39] Univ Sheffield, Sheffield S10 2TN, S Yorkshire, England

[40] Univ Texas Austin, Austin, TX 78712 USA

[41] Univ Texas Brownsville & Texas Southmost Coll, Brownsville, TX 78520 USA

[42] Trinity Univ, San Antonio, TX 78212 USA

[43] Univ Illes Balears, E-07122 Palma de Mallorca, Spain

[44] Univ Adelaide, Adelaide, SA 5005, Australia

[45] Univ Florida, Gainesville, FL 32611 USA

[46] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[47] Univ Maryland, College Pk, MD 20742 USA

[48] Univ Massachusetts, Amherst, MA 01003 USA

[49] Univ Michigan, Ann Arbor, MI 48109 USA

[50] Univ Minnesota, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW D | 2009年 / 80卷 / 04期

基金：

美国国家科学基金会; 澳大利亚研究理事会; 英国科学技术设施理事会; 美国国家航空航天局;

关键词：

RADIATION;

D O I：

10.1103/PhysRevD.80.042003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This paper reports on an all-sky search for periodic gravitational waves from sources such as deformed isolated rapidly spinning neutron stars. The analysis uses 840 hours of data from 66 days of the fifth LIGO science run (S5). The data were searched for quasimonochromatic waves with frequencies f in the range from 50 to 1500 Hz, with a linear frequency drift f center dot (measured at the solar system barycenter) in the range -f/tau < f center dot < 0.1f/tau, for a minimum spin-down age tau of 1000 years for signals below 400 Hz and 8000 years above 400 Hz. The main computational work of the search was distributed over approximately 100 000 computers volunteered by the general public. This large computing power allowed the use of a relatively long coherent integration time of 30 hours while searching a large parameter space. This search extends Einstein@Home's previous search in LIGO S4 data to about 3 times better sensitivity. No statistically significant signals were found. In the 125-225 Hz band, more than 90% of sources with dimensionless gravitational-wave strain tensor amplitude greater than 3x10(-24) would have been detected.

引用

页数：14

共 21 条

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