Calibration of the Advanced LIGO detectors for the discovery of the binary black-hole merger GW150914

被引:68
作者
Abbott, B. P. [1 ]
Abbott, R. [1 ]
Abbott, T. D. [2 ]
Abernathy, M. R. [1 ]
Ackley, K. [3 ]
Adams, C. [4 ]
Addesso, P. [5 ,6 ]
Adhikari, R. X. [1 ]
Adya, V. B. [7 ]
Affeldt, C. [7 ]
Aggarwal, N. [8 ]
Aguiar, O. D. [9 ]
Ain, A. [10 ]
Ajith, P. [11 ]
Allen, B. [7 ,12 ,13 ]
Altin, P. A. [14 ]
Amariutei, D. V. [3 ]
Anderson, S. B. [1 ]
Anderson, W. G. [12 ]
Arai, K. [1 ]
Araya, M. C. [1 ]
Arceneaux, C. C. [15 ]
Areeda, J. S. [16 ]
Arun, K. G. [17 ]
Ashton, G. [18 ]
Ast, M. [19 ]
Aston, M. [4 ]
Aufmuth, P. [13 ]
Aulbert, C. [7 ]
Babak, S. [20 ]
Baker, P. T. [21 ]
Ballmer, S. W. [22 ]
Barayoga, J. C. [1 ]
Barclay, S. E. [23 ]
Barish, B. C. [1 ]
Barker, D. [24 ]
Barr, B. [23 ]
Barsotti, L. [8 ]
Bartlett, J. [24 ]
Bartos, I. [25 ]
Bassiri, R. [26 ]
Batch, J. C. [24 ]
Baune, C. [7 ]
Behnke, B. [20 ]
Bell, A. S. [23 ]
Bell, C. J. [23 ]
Berger, B. K. [1 ]
Bergman, J. [24 ]
Bergmann, G. [7 ]
Berry, C. P. L. [27 ]
机构
[1] CALTECH, LIGO, Pasadena, CA 91125 USA
[2] Louisiana State Univ, Baton Rouge, LA 70803 USA
[3] Univ Florida, Gainesville, FL 32611 USA
[4] LIGO Livingston Observ, Livingston, LA 70754 USA
[5] Univ Sannio Benevento, I-82100 Benevento, Italy
[6] Ist Nazl Fis Nucl, Sez Napoli, I-80100 Naples, Italy
[7] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-30167 Hannover, Germany
[8] MIT, LIGO, Cambridge, MA 02139 USA
[9] Inst Nacl Pesquisas Espaciais, BR-12227010 Sao Jose Dos Campos, SP, Brazil
[10] Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India
[11] Tata Inst Fundamental Res, Int Ctr Theoret Sci, Bangalore 560012, Karnataka, India
[12] Univ Wisconsin, Milwaukee, WI 53201 USA
[13] Leibniz Univ Hannover, D-30167 Hannover, Germany
[14] Australian Natl Univ, Canberra, ACT 0200, Australia
[15] Univ Mississippi, University, MS 38677 USA
[16] Calif State Univ Fullerton, Fullerton, CA 92831 USA
[17] Chennai Math Inst, Madras 603103, Tamil Nadu, India
[18] Univ Southampton, Southampton SO17 1BJ, Hants, England
[19] Univ Hamburg, D-22761 Hamburg, Germany
[20] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-14476 Potsdam, Germany
[21] Montana State Univ, Bozeman, MT 59717 USA
[22] Syracuse Univ, Syracuse, NY 13244 USA
[23] Univ Glasgow, SUPA, Glasgow G12 8QQ, Lanark, Scotland
[24] LIGO Hanford Observ, Richland, WA 99352 USA
[25] Columbia Univ, New York, NY 10027 USA
[26] Stanford Univ, Stanford, CA 94305 USA
[27] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[28] RRCAT, Indore 452013, Madhya Pradesh, India
[29] Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia
[30] Univ West Scotland, SUPA, Paisley PA1 2BE, Renfrew, Scotland
[31] Univ Western Australia, Crawley, WA 6009, Australia
[32] MTA Eotvos Univ, Lendulet Astrophys Res Grp, H-1117 Budapest, Hungary
[33] Washington State Univ, Pullman, WA 99164 USA
[34] Univ Oregon, Eugene, OR 97403 USA
[35] Univ Maryland, College Pk, MD 20742 USA
[36] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA
[37] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA
[38] Univ Illes Balears, IEEC IAC3, E-07122 Palma de Mallorca, Spain
[39] NASA Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[40] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada
[41] Tsinghua Univ, Beijing 100084, Peoples R China
[42] Univ Michigan, Ann Arbor, MI 48109 USA
[43] Natl Tsing Hua Univ, Hsinchu 30013, Taiwan
[44] Charles Sturt Univ, Wagga Wagga, NSW 2678, Australia
[45] Univ Chicago, Chicago, IL 60637 USA
[46] Caltech CaRT, Pasadena, CA 91125 USA
[47] Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea
[48] Carleton Coll, Northfield, MN 55057 USA
[49] Univ Brussels, B-1050 Brussels, Belgium
[50] Sonoma State Univ, Rohnert Pk, CA 94928 USA
基金
美国国家科学基金会;
关键词
GRAVITATIONAL-WAVE DETECTORS;
D O I
10.1103/PhysRevD.95.062003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In Advanced LIGO, detection and astrophysical source parameter estimation of the binary black hole merger GW150914 requires a calibrated estimate of the gravitational-wave strain sensed by the detectors. Producing an estimate from each detector's differential arm length control loop readout signals requires applying time domain filters, which are designed from a frequency domain model of the detector's gravitational-wave response. The gravitational-wave response model is determined by the detector's optomechanical response and the properties of its feedback control system. The measurements used to validate the model and characterize its uncertainty are derived primarily from a dedicated photon radiation pressure actuator, with cross-checks provided by optical and radio frequency references. We describe how the gravitational-wave readout signal is calibrated into equivalent gravitational-wave-induced strain and how the statistical uncertainties and systematic errors are assessed. Detector data collected over 38 calendar days, from September 12 to October 20, 2015, contain the event GW150914 and approximately 16 days of coincident data used to estimate the event false alarm probability. The calibration uncertainty is less than 10% in magnitude and 10 degrees in phase across the relevant frequency band, 20 Hz to 1 kHz.
引用
收藏
页数:16
相关论文
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