Yan Huang


  • Home

  • Research

  • CV

  • Contact

Constrain the ejecta of GW 170817

Posted on 2019-10-20 | In research
GW 170817 is the first GW event together with its electromagnetic counterparts, imply that neutron merger. We consider a simple model for the nonthermal emission from GW170817, in which a quasi-spherical ejecta is released in the merger event, with the kinetic energy distributed over the momentum. The ejecta drives a shock into the medium and gives rise to synchrotron radiation.
Read more »

Secondary-electron radiation from SNRs

Posted on 2019-10-20 | In research
The synchrotron radiation from secondary electrons and positrons (SEPs) generated by hadronic interactions in the shock of supernova remnant (SNR) could be a distinct evidence of cosmic ray (CR) production in SNR shocks. Here we provide a method where the observed gamma-ray flux from SNRs, created by pion decays, is directly used to derive the SEP distribution and hence the synchrotron spectrum. We apply the method to three gamma-ray bright SNRs, RX J1713.7-3946, IC 443 and W44.
Read more »

Persistent X-ray emission from ASASSN-15lh

Posted on 2019-10-20 | In research
The persistent soft X-ray emission from the location of the so-far most luminous supernova (SN), ASASSN-15lh (or SN 2015L), with L ~ 1E42 erg/s, is puzzling. We show that it can be explained by radiation from the SN-shock accelerated electrons inverse-Compton scattering the intense UV photons. The non-detection in radio requires strong free-free absorption in the dense medium.
Read more »
Yan Huang

Yan Huang

Yan Huang’s homepage

3 posts
1 categories
E-Mail
0%
© 2019 Yan Huang
Powered by Hexo
|
Theme — NexT.Pisces