Accretion, ejection, jets, GRBs and cosmic ray

by Prof. Asaf Peer

Bar-Ilan University
at Physics Colloquium

Tue, 04 Jun 2019, 15:30
Alon Hall, Building 37, Room 220


One of the most fundamental questions in astrophysics today is that of
production of relativistic outflows (jets) and their properties. In
this talk, I will first describe several works we conducted aimed at
testing observational signatures that can discriminate between
emission from jets and accretion disks, and test the jet power - black
hole spin relation. I will then focus on jets in gamma-ray bursts
(GRBs), and show how one can constrain important properties, such as
magnetization parameter or their ability to accelerate cosmic rays
to the high energies. Specifically, I will show that modeling existing
data shows that in fact, the physical conditions during the prompt
emission of GRBs do not enable the acceleration of particles to the
highest observed energies

Created on 29-05-2019 by Eichler, David (eichler)
Updaded on 01-06-2019 by Bar Lev, Yevgeny (ybarlev)