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Afterglows and Kilonovae Associated with Nearby Low-luminosity Short-duration Gamma-Ray Bursts: Application to GW170817/GRB 170817A
Xiao, Di; Liu, Liang-Duan; Dai, Zi-Gao; Wu, Xue-Feng
2017
发表期刊ASTROPHYSICAL JOURNAL LETTERS
卷号850期号:2页码:L41
摘要Very recently, the gravitational-wave (GW) event GW170817 was discovered to be associated with the short gamma-ray burst (GRB) 170817A. Multi-wavelength follow-up observations were carried out, and X-ray, optical, and radio counterparts to GW170817 were detected. The observations undoubtedly indicate that GRB 170817A originates from a binary neutron star merger. However, the GRB falls into the low-luminosity class that could have a higher statistical occurrence rate and detection probability than the normal (high-luminosity) class. This implies the possibility that GRB 170817A is intrinsically powerful, but we are off-axis and only observe its side emission. In this Letter, we provide a timely modeling of the multi-wavelength afterglow emission from this GRB and the associated kilonova signal from the merger ejecta, under the assumption of a structured jet, a two-component jet, and an intrinsically less-energetic quasi-isotropic fireball, respectively. Comparing the afterglow properties with the multi-wavelength follow-up observations, we can distinguish between these three models. Furthermore, a few model parameters (e.g., the ejecta mass and velocity) can be constrained.
DOI10.3847/2041-8213/aa9b2b
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文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/17893
专题期刊(老文献)
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GB/T 7714
Xiao, Di,Liu, Liang-Duan,Dai, Zi-Gao,et al. Afterglows and Kilonovae Associated with Nearby Low-luminosity Short-duration Gamma-Ray Bursts: Application to GW170817/GRB 170817A[J]. ASTROPHYSICAL JOURNAL LETTERS,2017,850(2):L41.
APA Xiao, Di,Liu, Liang-Duan,Dai, Zi-Gao,&Wu, Xue-Feng.(2017).Afterglows and Kilonovae Associated with Nearby Low-luminosity Short-duration Gamma-Ray Bursts: Application to GW170817/GRB 170817A.ASTROPHYSICAL JOURNAL LETTERS,850(2),L41.
MLA Xiao, Di,et al."Afterglows and Kilonovae Associated with Nearby Low-luminosity Short-duration Gamma-Ray Bursts: Application to GW170817/GRB 170817A".ASTROPHYSICAL JOURNAL LETTERS 850.2(2017):L41.
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