Insight-HXMT 对首个双中子星并合事件 GW170817 的观测
摘要
寻找双致密星并合，特别是双中子星（BNS）并合的电磁（EM）对应体，对引力波（GW）天文学、宇宙学和基础物理学至关重要。2017年8月17日，Advanced LIGO 和 \textit{Fermi}/GBM 分别独立触发了首个 BNS 并合事件 GW170817 及其高能电磁对应体 GRB 170817A，引发了一场涵盖伽马射线、X射线、紫外、光学、红外、射电以及中微子的全球观测活动。\textit{Insight}-HXMT（硬X射线调制望远镜）搭载的高能X射线望远镜（HE）是唯一在 0.2-5 MeV 能段内以极大收集面积（1000 cm）和微秒级时间分辨率监测整个 GW 定位区域，特别是光学对应体（SSS17a/AT2017gfo）的高能伽马射线望远镜。此外，\textit{Insight}-HXMT 迅速实施了机会目标（ToO）观测，对 GW 定位区域进行扫描，以寻找来自该 GW 源的潜在 X 射线辐射。尽管其未探测到来自 GW170817 的任何显著高能（0.2-5 MeV）辐射，但其观测有助于确认 GRB 170817A 出人意料的微弱与软性质。同时，\textit{Insight}-HXMT/HE 为 GRB 170817A 以及 0.2-5 MeV 范围内任何其他可能的前兆辐射或延展辐射提供了最严格的约束之一（~10 至 10 erg/cm/s），这有助于我们更好地理解此次 BNS 并合电磁辐射的性质。因此，\textit{Insight}-HXMT 的观测构成了这一历史性引力波事件多波长与多信使观测全景中的重要篇章。
引用
@article{arxiv.1710.06065,
title = {Insight-HXMT observations of the first binary neutron star merger GW170817},
author = {TiPei Li and ShaoLin Xiong and ShuangNan Zhang and FangJun Lu and LiMing Song and XueLei Cao and Zhi Chang and Gang Chen and Li Chen and TianXiang Chen and Yong Chen and YiBao Chen and YuPeng Chen and Wei Cui and WeiWei Cui and JingKang Deng and YongWei Dong and YuanYuan Du and MinXue Fu and GuanHua Gao and He Gao and Min Gao and MingYu Ge and YuDong Gu and Ju Guan and ChengCheng Guo and DaWei Han and Wei Hu and Yue Huang and Jia Huo and ShuMei Jia and LuHua Jiang and WeiChun Jiang and Jing Jin and YongJie Jin and Bing Li and ChengKui Li and Gang Li and MaoShun Li and Wei Li and Xian Li and XiaoBo Li and XuFang Li and YanGuo Li and ZiJian Li and ZhengWei Li and XiaoHua Liang and JinYuan Liao and CongZhan Liu and GuoQing Liu and HongWei Liu and ShaoZhen Liu and XiaoJing Liu and Yuan Liu and YiNong Liu and Bo Lu and XueFeng Lu and Tao Luo and Xiang Ma and Bin Meng and Yi Nang and JianYin Nie and Ge Ou and JinLu Qu and Na Sai and Liang Sun and Yin Tan and Lian Tao and WenHui Tao and YouLi Tuo and GuoFeng Wang and HuanYu Wang and Juan Wang and WenShuai Wang and YuSa Wang and XiangYang Wen and BoBing Wu and Mei Wu and GuangCheng Xiao and He Xu and YuPeng Xu and LinLi Yan and JiaWei Yang and Sheng Yang and YanJi Yang and AiMei Zhang and ChunLei Zhang and ChengMo Zhang and Fan Zhang and HongMei Zhang and Juan Zhang and Qiang Zhang and Shu Zhang and Tong Zhang and Wei Zhang and WanChang Zhang and WenZhao Zhang and Yi Zhang and Yue Zhang and YiFei Zhang and YongJie Zhang and Zhao Zhang and ZiLiang Zhang and HaiSheng Zhao and JianLing Zhao and XiaoFan Zhao and ShiJie Zheng and Yue Zhu and YuXuan Zhu and ChangLin Zou},
journal= {arXiv preprint arXiv:1710.06065},
year = {2017}
}
备注
accepted by Science China - Physics, Mechanics & Astronomy. Planned to publish on Oct 17, but postponed due to a problem on pdf file