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Multi-messenger Observations of a Binary Neutron Star Merger
文献类型：期刊论文
| 作者 | Abbott, B. P.1; Abbott, R.1; Abbott, T. D.2; Acernese, F.3,4; Ackley, K.5,6; Adams, C.7; Adams, T.; Addesso, P.9,10; Adhikari, R. X.1; Adya, V. B.11 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2017-10-20 |
| 卷号 | 848期号:2页码:59 |
| ISSN号 | 2041-8205 |
| 关键词 | gravitational waves stars: neutron |
| DOI | 10.3847/2041-8213/aa91c9 |
| 通讯作者 | Abbott, B. P.() |
| 英文摘要 | On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of similar to 1.7 s with respect to the merger time. From the gravitational-wave signal, the source was initially localized to a sky region of 31 deg(2) at a luminosity distance of 40(-8)(+8) Mpc and with component masses consistent with neutron stars. The component masses were later measured to be in the range 0.86 to 2.26 M-circle dot. An extensive observing campaign was launched across the electromagnetic spectrum leading to the discovery of a bright optical transient (SSS17a, now with the IAU identification of AT 2017gfo) in NGC 4993 (at similar to 40 Mpc) less than 11 hours after the merger by the One-Meter, Two Hemisphere (1M2H) team using the 1 m Swope Telescope. The optical transient was independently detected by multiple teams within an hour. Subsequent observations targeted the object and its environment. Early ultraviolet observations revealed a blue transient that faded within 48 hours. Optical and infrared observations showed a redward evolution over similar to 10 days. Following early non-detections, X-ray and radio emission were discovered at the transient's position similar to 9 and similar to 16 days, respectively, after the merger. Both the X-ray and radio emission likely arise from a physical process that is distinct from the one that generates the UV/optical/near-infrared emission. No ultra-high-energy gamma-rays and no neutrino candidates consistent with the source were found in follow-up searches. These observations support the hypothesis that GW170817 was produced by the merger of two neutron stars in NGC4993 followed by a short gamma-ray burst (GRB 170817A) and a kilonova/macronova powered by the radioactive decay of r-process nuclei synthesized in the ejecta. |
| WOS关键词 | GAMMA-RAY BURSTS ; NEARBY SUPERNOVA RATES ; GRAVITATIONAL-WAVES ; RELATIVISTIC GRAVITY ; PULSAR PSR-1913+16 ; OPTICAL AFTERGLOWS ; COMPACT OBJECTS ; RADIO TELESCOPE ; CLOSE BINARIES ; BLACK-HOLES |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000413211000001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/22763]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Abbott, B. P. |
| 作者单位 | 1.CALTECH, LIGO, Pasadena, CA 91125 USA 2.Louisiana State Univ, Baton Rouge, LA 70803 USA 3.Univ Salerno, I-84084 Salerno, Italy 4.Complesso Univ Monte S Angelo04, Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy 5.Univ Florida, Gainesville, FL 32611 USA 6.Monash Univ, Sch Phys & Astron, OzGrav, Clayton, Vic 3800, Australia 7.LIGO Livingston Observ, Livingston, LA 70754 USA 8.Univ Savoie Mont Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules LAPP, F-74941 Annecy, France 9.Univ Sannio Benevento, I-82100 Benevento, Italy 10.Ist Nazl Fis Nucl, Sez Napoli, I-80100 Naples, Italy |
| 推荐引用方式 GB/T 7714 | Abbott, B. P.,Abbott, R.,Abbott, T. D.,et al. Multi-messenger Observations of a Binary Neutron Star Merger[J]. ASTROPHYSICAL JOURNAL LETTERS,2017,848(2):59. |
| APA | Abbott, B. P..,Abbott, R..,Abbott, T. D..,Acernese, F..,Ackley, K..,...&Unnikrishnan, C. S..(2017).Multi-messenger Observations of a Binary Neutron Star Merger.ASTROPHYSICAL JOURNAL LETTERS,848(2),59. |
| MLA | Abbott, B. P.,et al."Multi-messenger Observations of a Binary Neutron Star Merger".ASTROPHYSICAL JOURNAL LETTERS 848.2(2017):59. |
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来源：紫金山天文台
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