Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..966..191a&link_type=abstract
RELATIVISTIC ASTROPHYSICS: 4th Italian-Sino Workshop. AIP Conference Proceedings, Volume 966, pp. 191-196 (2008).
Astronomy and Astrophysics
Astrophysics
3
Gamma-Ray Sources, Gamma-Ray Bursts, Supernovae, Dark Energy, Observational Cosmology
Scientific paper
The pair plasma with photon energies in the range 0.1-10 MeV is believed to play crucial role in cosmic Gamma-Ray Bursts. Starting from a nonequilibrium configuration we analyze the role of the direct and the inverse binary and triple interactions in reaching thermal equilibrium in a homogeneous isotropic pair plasma. We numerically integrate the relativistic Boltzmann equation with the exact QED collisional integrals taking into account all binary and triple interactions. We show that first, when a detailed balance is reached for all binary interactions on a time scale tk<~10-14 sec, photons and electron-positron pairs establish kinetic equilibrium. Subsequently, when triple interactions satisfy the detailed balance on a time scale teq<~10-12 sec, the plasma reaches thermal equilibrium. It is shown that neglecting the inverse triple interactions prevents reaching thermal equilibrium. Our results obtained in the theoretical physics domain also find application in astrophysics and cosmology.
Aksenov Alexey G.
Ruffini Remo
Vereshchagin Gregory V.
No associations
LandOfFree
Thermalization of Electron-Positron-Photon Plasmas with an application to GRB does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Thermalization of Electron-Positron-Photon Plasmas with an application to GRB, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermalization of Electron-Positron-Photon Plasmas with an application to GRB will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1589156