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SUMMARY:Multi-messenger astrophysics from compact-star-driven relativistic
  outflows
DTSTART;VALUE=DATE-TIME:20250319T060000Z
DTEND;VALUE=DATE-TIME:20250319T070000Z
DTSTAMP;VALUE=DATE-TIME:20260509T215600Z
UID:indico-event-3990@indico-tdli.sjtu.edu.cn
DESCRIPTION:Speakers: Jieshuang Wang\n\nAbstract:Multi-messenger observati
 ons\, encompassing photons\, neutrinos\, cosmic rays\, and gravitational w
 aves\, provide complementary perspectives for investigating high-energy as
 trophysical phenomena and addressing fundamental questions in astrophysics
 . Compact stars and their associated relativistic outflows often serve as 
 the central engines powering these extreme events. In this talk\, I will d
 iscuss two key topics in multi-messenger astrophysics. First\, I will exam
 ine electromagnetic counterparts arising during the inspiral phase of neut
 ron star mergers\, with a particular focus on magnetospheric interactions 
 and their multi-wavelength emission signatures. These early-time signals c
 an potentially constrain post-merger remnant\, provide extra information f
 or the binary orbital decay for gravitational wave study\, and improve the
  efficiency of multi-messenger follow-up strategies. Second\, I will inves
 tigate relativistic jets from active galactic nuclei and X-ray binaries as
  potential sources of very- and ultra-high-energy cosmic rays. The origin 
 of cosmic rays remains one of the longstanding questions in astrophysics. 
 I will introduce a framework based on turbulent shear acceleration for jet
 s\, which provides a self-consistent explanation for both the observed mul
 ti-wavelength spectra of these systems and the acceleration of cosmic rays
  to the highest energies. Finally\, I will discuss some new astrophysical 
 phenomena and their potential role in multi-messenger astrophysics.Bio:Jie
 shuang Wang obtained his PhD in 2018 in Nanjing University. After completi
 ng his PhD\, he joined the TDLI as a postdoctoral fellow. From 2021 to 202
 4\, he was awarded an Alexander von Humboldt Fellowship and worked at the 
 Max Planck Institute for Nuclear Physics in Germany. Since June 2024\, he 
 has been a postdoctoral researcher at the Max Planck Institute for Plasma 
 Physics. His primary research focuses on high-energy astrophysics\, partic
 ularly phenomena involving compact stars such as accreting black holes\, n
 eutron star binaries\, and magnetars. He investigates dynamics\, particle 
 acceleration\, and multi-messenger radiation through both analytical model
 ing and numerical simulations. He has authored more than 50 publications\,
  which have collectively received over 2\,000 citations.Host: Pengjie Zhan
 gTencent Link: https://meeting.tencent.com/dm/4yM9uJaKb80Q \n\nhttps://in
 dico-tdli.sjtu.edu.cn/event/3990/
LOCATION:Tsung-Dao Lee Institute/N4F-N400 - meeting room (Tsung-Dao Lee In
 stitute)
URL:https://indico-tdli.sjtu.edu.cn/event/3990/
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