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學術活動
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學術報告(20190927)The neutron star merger and its EM counterparts
發布時間:2019-09-17

報告題目: The neutron star merger and its EM counterparts
報告人: 王界雙  博士
報告人單位: 上海交通大學
報告時間: 9月27日下午 3 :00
報告地點: 東七樓,四樓427會議室
邀請單位: 粒子與天體物理研究所
報告摘要:

Mergers of binary compact stars are major gravitational wave sources in the LIGO era, but they can also produce various electromagnetic signals. We studied the  electromagnetic emission signals of binary compact star gravitational wave  sources consisting of strongly magnetized neutron stars in their late-time  inspiral phase from both theoretical and observational point of views. Because of electromagnetic interactions between the magnetospheres of the two compact stars, electric fields will be induced and a substantial amount of orbital kinetic energy will be extracted. The induced electric field can accelerate electrons up to TeV and protons up to the EeV energy range. Synchrotron-pair cascade will be triggered by the accelerated energetic electrons, the secondary photons peaks in MeV for binary NSs. In addition, a blackbody component will also be presented peaked at a few hundreds of keV. When the coherent curvature radiation mechanism take place, fast radio bursts can be produced. So the inspiral of the binary neutron star could produce multi-messengers: GWs, FRBs, and GRBs (with precursors).
報告人簡介:

Max-Planck   Institute for Nuclear Physics, Heidelberg, Germany Joint Ph.D.student, Astrophysics
2016.10-2018.6, advisor: Felix Aharonian
School of Astronomy and Space Science, Nanjing University, Nanjing,   China Successive master-doctor student, Astrophysics
2013.9-2018.6, advisor: Zi-GaoDai
School of Astronomy and Space Science, Nanjing University, Nanjing,   China
Bachelor of Science, Astronomy
2009.9-2013.6, GPA:4.4/5.0
Research Experience
Tsung-Dao Lee Institute, Shanghai JiaoTong University, Shanghai, China
Tsung-Dao Lee Post-doc fellow: independent fellowship
Since 2018.7
?Fast radio bursts and the irnebulaor afterglow, collaborator:   DongLai
?Tidal effects of neutron stars in the eccentricin spiral system, collaborator: DongLai
 ?Electromagnetic counterparts of the neutron star merger, collaborator:   BinbinZhang,
?Strong gravitational lensing of gravitational wave, collaborator: Yi-MingHu, Martin Hendry


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