On the Energy Budget of Starquake-induced Repeating Fast Radio Bursts  

作　　者：Wei-Yang Wang Chen Zhang Enping Zhou Xiaohui Liu Jiarui Niu Zixuan Zhou He Gao Jifeng Liu Renxin Xu Bing Zhang 王维扬;张晨;周恩平;刘小辉;牛佳瑞;周子轩;高鹤;刘继峰;徐仁新;张冰(School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China;The HKUST Jockey Club Institute for Advanced Study,The Hong Kong University of Science and Technology,Hong Kong,China;School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China;National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;School of Mathematics and Physics,University of Science and Technology,Beijing 100083,China;Department of Astronomy,Beijing Normal University,Beijing 100875,China;New Cornerstone Science Laboratory,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;Institute for Frontiers in Astronomy and Astrophysics,Beijing Normal University,Beijing 102206,China;Nevada Center for Astrophysics,University of Nevada,Las Vegas,NV 89154,USA;Department of Physics and Astronomy,University of Nevada,Las Vegas,NV 89154,USA)

机构地区：[1]School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China [2]State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China [3]The HKUST Jockey Club Institute for Advanced Study,The Hong Kong University of Science and Technology,Hong Kong,China [4]School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China [5]National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China [6]School of Mathematics and Physics,University of Science and Technology,Beijing 100083,China [7]Department of Astronomy,Beijing Normal University,Beijing 100875,China [8]New Cornerstone Science Laboratory,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China [9]Institute for Frontiers in Astronomy and Astrophysics,Beijing Normal University,Beijing 102206,China [10]Nevada Center for Astrophysics,University of Nevada,Las Vegas,NV 89154,USA [11]Department of Physics and Astronomy,University of Nevada,Las Vegas,NV 89154,USA

出　　处：《Research in Astronomy and Astrophysics》2024年第10期180-188,共9页天文和天体物理学研究（英文版）

基　　金：supported by the National SKA Program of China(No.2020SKA0120100);the Strategic Priority Research Program of the CAS(No.XDB0550300);support from the National Natural Science Foundation of China(NSFC,Grant Nos.11988101 and 11933004);from the New Cornerstone Science Foundation through the New Cornerstone Investigator Program and the XPLORER PRIZE。

摘　　要：With a growing sample of fast radio bursts(FRBs),we investigate the energy budget of different power sources within the framework of magnetar starquake triggering mechanism.During a starquake,the energy can be released in any form through strain,magnetic,rotational,and gravitational energies.The strain energy can be converted from three other kinds of energy during starquakes.The following findings are revealed:(1)The crust can store free magnetic energy of~10^(46)erg by existing toroidal fields,sustaining 10^(6)bursts with frequent starquakes occurring due to crustal instability.(2)The strain energy develops as a rigid object spins down,which can be released during a global starquake accompanied by a glitch.However,it takes a long time to accumulate enough strain energy via spindown.(3)The rotational energy of a magnetar with P■0.1 s can match the energy and luminosity budget of FRBs.(4)The budget of the total gravitational energy is high,but the mechanism and efficiency of converting this energy to radiation deserve further exploration.

关 键 词：stars:magnetars stars:neutron radiation mechanisms:non-thermal 

分 类 号：P144[天文地球—天体物理]