云南大学中国西南天文研究所

 首页 Home | 研究所简介 SWIFAR | 人员 People | 科学研究 Science | 学术活动 Activities | 人才培养 Education | 科学普及 Outreach | 诚聘英才 Recruitment | 访问指南 For Visitors | 内部链接 Internal 
 
 研究领域 Research Areas 
 望远镜研制 Telescope Development 
 文章发表 Publications 
 
  致密天体及高能天体物理 Compact Objects and High-Energy Astrophysics
当前位置: 研究领域 Research Areas>>致密天体及高能天体物理 Compact Objects and High-Energy Astrophysics
 

致密天体及高能天体物理 Compact Objects and High-Energy Astrophysics

     Compact objects and high-energy astrophysical phenomena are major research areas of modern astrophysics. Compact objects, including neutron stars, black holes, and white dwarfs, are "born" when stars "die". As the most compact objects in the universe, they play a vital role for the study of fundamental physics. Their strong gravitational fields provide an excellent test bed for (in)validating general relativity. The ultra-high temperatures, densities and/or strong magnetic fields associated with compact objects allow one to probe the physical processes under extreme conditions well beyond the reach of terrestrial laboratories. Some of the most spectacular phenomena in the universe are associated with compact objects such as supernova explosions, gamma-ray bursts, kilonovae, gravitational waves, fast radio bursts, radio pulsars, ultra-luminous X-ray sources, etc. Black holes of various masses and spins play an important role in determining the observational signatures of X-ray binaries, active galactic nuclei, and tidal disruption events.

        致密天体及高能天体物理现象是当代天体物理学的重要研究领域。致密天体如中子星、黑洞和白矮星是恒星死亡的产物。作为宇宙中最致密的天体,它们对研究基础物理学至关重要。它们极强的引力场为验证广义相对论提供了极佳的平台。致密天体极高的温度、密度或磁场使得我们能够探测、研究远超出实验室条件下的极端物理过程。宇宙中一些最壮观的现象往往都与致密天体有关,如超新星爆发、伽马射线暴、千新星、引力波、快速射电暴、射电脉冲星、极亮X射线源等等。不同质量和自旋的黑洞在X射线双星、活动星系核以及潮汐撕裂事件中也扮演着非常重要的角色,直接决定了此类现象的观测特征。

        Our research focuses on the physical processes of compact objects and their vicinities, and the associated multi-wavelength and multi-messenger phenomena. Through theoretical investigations, observational analyses and numerical simulations, we study the origins and radiative mechanisms of high-energy transients, the physical processes of accretion disks and jets associated with X-ray binaries and active galactic nuclei, the theory of general relativity and its applications in astrophysics, and the spectral energy distributions and variations of X-ray sources.  The study tells us about the extreme astrophysical environments near compact objects and probes the physical processes under extreme conditions. Our study involves broad domestic as well as international collaborations.

        本团组研究涉及致密天体及其近临区域的相关物理过程,以及相关多波段、多信使现象。通过理论研究、观测分析和数值模拟,研究高能暂现源的起源和辐射机制、X射线双星和活动星系核吸积盘及喷流的相关物理过程、广义相对论及其在天体物理中的应用,以及X射线源的能谱时变分析。研究将揭示致密天体的极端天体物理环境,探测极端条件下的物理过程。研究涉及广泛的国内、国际合作。

        代表性论文 (Selected publications):



版权所有:云南大学中国西南天文研究所 

South-Western Institute For Astronomy Research, YNU