Ⅰ型X射线暴和中子星周围物质的相互作用研究进展  

The Research Progress of the Interaction between Type I X-ray Burst and Matter around Neutron Stars

作　　者：刘燕梅 潘元月 李兆升 LIU Yan-mei;PAN Yuan-yue;LI Zhao-sheng(Key Laboratory of Stars and Interstellar Medium,Xiangtan University,Xiangtan 411105,China)

机构地区：[1]湘潭大学物理与光电工程学院“恒星与星际物质”省高校重点实验室,湘潭411105

出　　处：《天文学进展》2023年第2期181-197,共17页Progress In Astronomy

基　　金：国家自然科学基金(U1938107,12130342)。

摘　　要：Ⅰ型X射线暴是发生在中子星小质量X射线双星表面的不稳定核燃烧过程。Ⅰ型X射线暴的辐射可对中子星周围的物质产生显著影响。文章回顾了Ⅰ型X射线暴与中子星周围物质之间的相互作用的观测结果和理论解释,包括坡印亭-罗伯逊效应引起的吸积率增加、Ⅰ型X射线暴能谱中的吸收限特征、吸积盘反射、千赫兹准周期震荡信号的变化、冕冷却导致的硬X射线缺失等;此外,还介绍了NICER卫星相关观测的最新进展。Type I X-ray bursts are unstable nuclear burning processes that occur on the surface of neutron star in low-mass X-ray binary.The radiation of type I X-ray bursts can have significant effects on matter around neutron stars.We review the observations and theoretical interpretations of the interaction between type I X-ray bursts and matter around neutron stars,including the increased accretion rate caused by the Poynting-Robertson effect,the absorption edge features in the burst spectra,the accretion disk reflection features,the disappearance and emergence of the kHz QPO(quasi-periodic oscillation)signal during bursts,the hard X-ray flux deficit due to the coronal cooling.Furthermore,we also present recent progress from NICER observations.

关 键 词：Ⅰ型X射线暴 吸积盘 冕 

分 类 号：P142.6[天文地球—天体物理]