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 
 
 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 
 
  过往活动 Past Events
当前位置: 首页 Home>>过往活动 Past Events>>正文
 

Lunch talk on Aug. 22nd, 2019

Electromagnetic counterparts of the neutron star merger


Speaker: Jieshuang Wang (Shanghai Jiao Tong University)

Venue: Room 2317, SWIFAR Building

Time: 12:30 PM, Thursday, 22nd August, 2019


Abstract: 

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).


Report PPT:   JSW_GW-EM.pdf


附件【JSW_GW-EM.pdf已下载
关闭窗口

版权所有:云南大学中国西南天文研究所 

South-Western Institute For Astronomy Research, YNU