IHEP OpenIR  > 硬X射线调制望远镜卫星  > HXMT期刊论文
Multi-messenger Observations of a Binary Neutron Star Merger
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.; Affeldt, C.; Afrough, M.; Agarwal, B.; Agathos, M.; Agatsuma, K.; Aggarwal, N.; Aguiar, O. D.; Aiello, L.; Ain, A.; Ajith,
2017
通讯作者Abbott, BP
通讯作者单位CALTECH, LIGO, Pasadena, CA 91125 USA.
关键词gravitational waves stars: neutron
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.
出处ASTROPHYSICAL JOURNAL LETTERS
卷号848期号:2页码:L12
收录类别SCI
DOI10.3847/2041-8213/aa91c9
WOS记录号WOS:000413211000001
WOS类目Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
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
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
ADS Bibcode2017ApJ...848L..12A
ADS URLhttps://ui.adsabs.harvard.edu/#abs/2017ApJ...848L..12A
ADS引文https://ui.adsabs.harvard.edu/#search/q=citations(%222017ApJ...848L..12A%22)&sort=date%20desc%2C%20bibcode%20desc
AXRIV号arXiv:1710.05833
引用统计
被引频次:125[WOS]   [WOS记录]     [WOS相关记录]
文献类型HXMT期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/265648
专题硬X射线调制望远镜卫星_HXMT期刊论文
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Abbott, B. P.,Abbott, R.,Abbott, T. D.,et al. Multi-messenger Observations of a Binary Neutron Star Merger. 2017.
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