伽马暴中心天体及其性质一直神秘。硬X射线调制望远镜卫星(Insight-HXMT)的有效探测，将为研究伽马暴中心天体性质及其活动规律获得极佳的能谱和时变数据。双中子星并合引力波事件GW170817与短暴GRB 170817A成协的发现，标志着多信使天文学时代的来临，但当前引力波探测精度无法确定并合产物。借助Insight-HXMT与引力波天线和其它天文设备的联合观测，为研究伽马暴中心天体性质开辟了新途径。本项目将基于这种多波段、多信使观测，开展以下研究: 1）利用Insight-HXMT与其它伽马暴设备同时观测获得的高质量能谱数据研究中心天体性质；2) 寻找证认伽马暴中新生黑洞并研究其性质; 3) 利用Insight-HXMT伽马暴样本得到的统计关系来研究中心天体性质。通过这些研究，将有助于理解伽马暴中心天体性质，以及喷流的产生机制。

The properties of the central object of gamma-ray burst (GRB) remains a mystery. The problem is that the central object is hidden from view, no electromagnetic radiation reaches the observer directly from the engine. The high-precision detection of GRBs by Insight-HXMT will provide special opportunity to study of GRB central object. Very recently, Advanced LIGO and VIRGO detected GW170817, which is consistent with a neutron star–neutron star (NS–NS) merger. Subsequently, the accompanied short GRB 170817A was identified. This marked the beginning of the era of multi-messenger astronomy. The combined detections of GRBs with Insight-HXMT and Advanced LIGO will offer new insight into GRB study. In this project, we will study the central object of GRBs based on the observations of Insight-HXMT in the following aspects: 1) study the properties of central object with the spectra from the simultaneously observations with Insight-HXMT and other instruments; 2) study the properties of new-born black hole in GRBs; 3) study the properties of GRB central object with the empirical correlations. These studies may be helpful for understanding the properties of GRB central objects, and the jet formation mechanism.