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X-ray flares of γ-ray bursts: Quakes of solid quark stars?

Science China(physics,Mechanics & Astronomy) 2009年第2期52卷 315-320页

作者： xu renxin1 & liang enwei2.1 school of physics and state key laboratory of nuclear physics and technology, peking university,{2., China 2.Department of physics, Guangxi university, Nanning 530004, China 1. school of physics and {2. key laboratory of nuclear physics and technology Peking University Beijing 100871 China 2. Department of physics Guangxi University Nanning 530004 China

A star-quake model is proposed to understand X-ray flares of both long and short γ-ray bursts (GRBs) in a solid quark star regime. Two kinds of central engines for GRBs are available if pulsar-like stars are actually (solid) quark stars, i.e., the SNE-type GRBs and the SGR-type GRBs. It is found that a quark star could be solidified about 103 to 106 s later after its birth if the critical temperature of phase transi- tion is a few Metga-electron-volts, and then a new source of free energy (i.e., elastic and gravitational ones, rather than rotational or magnetic energy) could be possible to power GRB X-ray flares.

关键词： γ-rays bursts: X-rays neutron stars elementary particles

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Scientific objectives of the Hot Universe Baryon Surveyor(HUBS) mission

引用

中国科学:物理学、力学、天文学英文版 2023年第9期66卷 134-178页

作者： Joel Bregman Renyue Cen Yang Chen Wei Cui Taotao Fang Fulai Guo Edmund Hodges-Kluck Rui Huang Luis C.Ho Li Ji Suoqing Ji Xi Kang Xiaoyu Lai Hui Li Jiangtao Li Miao Li Xiangdong Li Yuan Li Zhaosheng Li Guiyun liang Helei Liu Wenhao Liu Fangjun Lu Junjie Mao Gabriele Ponti Zhijie Qu Chenxi Shan Lijing Shao Fangzheng Shi Xinwen Shu Lei Sun Mouyuan Sun Hao Tong Junfeng Wang Junxian Wang Q.Daniel Wang Song Wang Tinggui Wang Weiyang Wang Zhongxiang Wang Dandan xu Haiguang xu Heng xu renxin xu Xiaojie xu Yongquan xue Hang Yang Feng Yuan Shuinai Zhang Yuning Zhang Zhongli Zhang Yuanyuan Zhao Enping Zhou Ping Zhou Department of Astronomy University of MichiganAnn Arbor MI 48109-1107USA Institute for Astronomy School of PhysicsZhejiang UniversityHangzhou 310027China school of Astronomy and Space Science Nanjing UniversityNanjing 210023China key laboratory of Modern Astronomy and Astro{2. Nanjing UniversityNanjing 210023China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Astronomy Xiamen UniversityXiamen 361005China Astrophysics Division Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China key laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China NASA Goddard Space Flight Center Greenbelt MD 20771USA Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China Department of Astronomy School of PhysicsPeking UniversityBeijing 100871China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China Department of physics and Astronomy Hubei University of EducationWuhan 430205China Department of physics University of North TexasDenton TX 76203USA key laboratory of Stars and Interstellar Medium Xiangtan UniversityXiangtan 411105China CAS key laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China school of Physical Science and technology Xinjiang UniversityUrumuqi 830046China key laboratory for Particle Astro{2. Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China INAF-Osservatorio Astronomico di Brera Merate(LC)I-23807Italy Department of Astronomy&Astrophysics the University of ChicagoChicago IL 60637USA school of physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Department of physics Anhui Normal UniversityWuhu 241002China school of physics and Materials Science Guangzhou UniversityGuangzhou 510006China Department of Astronomy University of Science and Technology of ChinaHefei 230026China Depart

The Hot Universe Baryon Surveyor(HUBS) is a proposed space-based X-ray telescope for detecting X-ray emissions from the hot gas content in our universe. With its unprecedented spatially-resolved high-resolution spectroscopy and large field of view,the HUBS mission will be uniquely qualified to measure the physical and chemical properties of the hot gas in the interstellar medium, the circumgalactic medium, the intergalactic medium, and the intracluster medium. These measurements will be valuable for two key scientific goals of HUBS, namely to unravel the AGN and stellar feedback physics that governs the formation and evolution of galaxies, and to probe the baryon budget and multi-phase {2.s from galactic to cosmological scales. In addition to these two goals, the HUBS mission will also help us solve some problems in the fields of galaxy clusters, AGNs, difuse X-ray backgrounds, supernova remnants, and compact objects. This paper discusses the perspective of advancing these fields using the HUBS telescope.

关键词： X-ray telescopes Galactic halo X-ray sources

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