GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼3.4 M⊙

被引:1117
作者
Abbott, B. P. [1 ]
Abbott, R. [1 ]
Abbott, T. D. [2 ]
Abraham, S. [3 ]
Acernese, F. [4 ,5 ]
Ackley, K. [6 ]
Adams, C. [7 ]
Adhikari, R. X. [1 ]
Adya, V. B. [8 ]
Affeldt, C. [9 ,10 ]
Agathos, M. [11 ,12 ]
Agatsuma, K. [13 ]
Aggarwal, N. [14 ]
Aguiar, O. D. [15 ]
Aiello, L. [16 ,17 ]
Ain, A. [3 ,15 ,20 ,30 ,33 ,46 ]
Ajith, P. [18 ]
Allen, G. [19 ]
Allocca, A. [20 ,21 ]
Aloy, M. A. [22 ]
Altin, P. A. [8 ]
Amato, A. [23 ]
Anand, S. [1 ]
Ananyeva, A. [1 ]
Anderson, S. B. [1 ]
Anderson, W. G. [24 ]
Angelova, S. V. [25 ]
Antier, S. [26 ]
Appert, S. [1 ]
Arai, K. [1 ]
Araya, M. C. [1 ]
Areeda, J. S. [27 ]
Arene, M. [26 ]
Arnaud, N. [28 ,29 ]
Aronson, S. M. [30 ]
Arun, K. G. [13 ,31 ]
Ascenzi, S. [16 ,32 ]
Ashton, G. [6 ]
Aston, S. M. [7 ]
Astone, P. [33 ]
Aubin, F. [34 ]
Aufmuth, P. [10 ]
AultONeal, K. [35 ]
Austin, C. [2 ]
Avendano, V. [36 ]
Avila-Alvarez, A. [27 ]
Babak, S. [26 ]
Bacon, P. [26 ]
Badaracco, F. [16 ,17 ]
Bader, M. K. M. [37 ]
机构
[1] CALTECH, LIGO, Pasadena, CA 91125 USA
[2] Louisiana State Univ, Baton Rouge, LA 70803 USA
[3] Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India
[4] Univ Salerno, Dipartimento Farm, I-84084 Salerno, Italy
[5] Complesso Univ Monte S Angelo, INFN, Sez Napoli, I-80126 Naples, Italy
[6] Monash Univ, Sch Phys & Astron, OzGrav, Clayton, Vic 3800, Australia
[7] LIGO Livingston Observ, Livingston, LA 70754 USA
[8] Australian Natl Univ, OzGrav, Canberra, ACT 0200, Australia
[9] Albert Einstein Inst, Max Planck Inst Gravitat Phys, D-30167 Hannover, Germany
[10] Leibniz Univ Hannover, D-30167 Hannover, Germany
[11] Friedrich Schiller Univ Jena, Theoret Phys Inst, D-07743 Jena, Germany
[12] Univ Cambridge, Cambridge CB2 1TN, England
[13] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[14] MIT, LIGO, 77 Massachusetts Ave, Cambridge, MA 02139 USA
[15] Inst Nacl Pesquisas Espaciais, BR-12227010 Sao Jose Dos Campos, SP, Brazil
[16] Gran Sasso Sci Inst GSSI, I-67100 Laquila, Italy
[17] INFN, Lab Nazl Gran Sasso, I-67100 Assergi, Italy
[18] Tata Inst Fundamental Res, Int Ctr Theoret Sci, Bengaluru 560089, India
[19] Univ Illinois, NCSA, Urbana, IL 61801 USA
[20] Univ Pisa, I-56127 Pisa, Italy
[21] INFN, Sez Pisa, I-56127 Pisa, Italy
[22] Univ Valencia, Dept Astron & Astrofis, E-46100 Valencia, Spain
[23] CNRS IN2P3, Lab Mat Avances LMA, F-69622 Villeurbanne, France
[24] Univ Wisconsin, Milwaukee, WI 53201 USA
[25] Univ Strathclyde, SUPA, Glasgow G1 1XQ, Lanark, Scotland
[26] Univ Paris Diderot, Observ Paris, AstroParticule & Cosmol, APC,CNRS IN2P3,CEA Irfu,Sorbonne Paris Cite, F-75205 Paris 13, France
[27] Calif State Univ Fullerton, Fullerton, CA 92831 USA
[28] Univ Paris Saclay, Univ Paris Sud, LAL, CNRS IN2P3, F-91898 Orsay, France
[29] European Gravitat Observ EGO, I-56021 Pisa, Italy
[30] Univ Florida, Gainesville, FL 32611 USA
[31] Chennai Math Inst, Chennai 603103, Tamil Nadu, India
[32] INFN, Sez Roma Tor Vergata, I-00133 Rome, Italy
[33] INFN, Sez Roma, I-00185 Rome, Italy
[34] Univ Grenoble Alpes, Univ Savoie Mt Blanc, Lab Annecy Phys Particules LAPP, CNRS IN2P3, F-74941 Annecy Le Vieux, France
[35] Embry Riddle Aeronaut Univ, Prescott, AZ 86301 USA
[36] Montclair State Univ, Montclair, NJ 07043 USA
[37] Nikhef, Sci Pk 105, NL-1098 XG Amsterdam, Netherlands
[38] Korea Inst Sci & Technol Informat, Daejeon 34141, South Korea
[39] West Virginia Univ, Morgantown, WV 26506 USA
[40] Univ Perugia, I-06123 Perugia, Italy
[41] INFN, Sez Perugia, I-06123 Perugia, Italy
[42] Syracuse Univ, Syracuse, NY 13244 USA
[43] Univ Minnesota, Minneapolis, MN 55455 USA
[44] Univ Milano Bicocca, I-20126 Milan, Italy
[45] INFN, Sez Milano Bicocca, I-20126 Milan, Italy
[46] Univ Glasgow, SUPA, Glasgow G12 8QQ, Lanark, Scotland
[47] LIGO Hanford Observ, Richland, WA 99352 USA
[48] Caltech CaRT, Pasadena, CA 91125 USA
[49] Univ Salerno, Scuola Med Salernitana, Dipartimento Med Chirurg & Odontoiatria, I-84081 Salerno, Italy
[50] RMKI, Wigner RCP, Konkoly Thege Miklos Ut 29-33, H-1121 Budapest, Hungary
基金
匈牙利科学研究基金会; 瑞士国家科学基金会; 中国国家自然科学基金; 俄罗斯基础研究基金会; 新加坡国家研究基金会; 英国科学技术设施理事会; 俄罗斯科学基金会; 澳大利亚研究理事会; 美国国家科学基金会;
关键词
DOUBLE NEUTRON-STARS; GAMMA-RAY BURSTS; GRAVITATIONAL-WAVE SOURCES; MERGER RATE; EVOLUTION; RATES; PROGENITORS; EQUATION; PULSAR; HYDRODYNAMICS;
D O I
10.3847/2041-8213/ab75f5
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
On 2019 April 25, the LIGO Livingston detector observed a compact binary coalescence with signal-to-noise ratio 12.9. The Virgo detector was also taking data that did not contribute to detection due to a low signal-to-noise ratio, but were used for subsequent parameter estimation. The 90% credible intervals for the component masses range from1.12 to 2.52 M-circle dot (1.46-1.87 M-circle dot if we restrict the dimensionless component spin magnitudes to be smaller than 0.05). These mass parameters are consistent with the individual binary components being neutron stars. However, both the source-frame chirp mass 1.44(-0.02)(+0.02) M-circle dot. and the total mass 3.4(-0.1)(+0.3) M-circle dot. of this system are significantly larger than those of any other known binary neutron star (BNS) system. The possibility that one or both binary components of the system are black holes cannot be ruled out from gravitational-wave data. We discuss possible origins of the system based on its inconsistency with the known Galactic BNS population. Under the assumption that the signal was produced by a BNS coalescence, the local rate of neutron star mergers is updated to 250-2810 Gpc(-3) yr(-1).
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页数:24
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