GRB prompt emission from internal shocks: spectral slope in the low gamma-ray range, high-energy photons and optical prompt emission

Details GRB prompt emission from internal shocks: spectral slope in the low gamma-ray range, high-energy photons and optical prompt emission GRB prompt emission from internal shocks: spectral slope in the low gamma-ray range, high-energy photons and optical prompt emission

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1133..288d&link_type=abstract

GAMMA-RAY BURST: Sixth Huntsville Symposium. AIP Conference Proceedings, Volume 1133, pp. 288-293 (2009).

Computer Science

Sound

Gamma-Ray Sources, Gamma-Ray Bursts, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies, Macrosonic Propagation, Finite Amplitude Sound, Shock Waves

Scientific paper

We compute the emission from internal shocks using a new approach, where a detailed model for the dynamics of shock waves is coupled to a radiative code that solves the time evolution of shock-accelerated electrons and emitted photons in the comoving frame of the shocked material, taking into account all relevant radiative processes. Using this model, we discuss which process (synchrotron vs inverse Compton) is most likely dominating the observed low gamma-ray emission and consider a possible mechanism to reconcile the synchrotron process with the observed spectral slope (α~-1) in this energy range. We then focus on the high-energy emission (Fermi-LKT range) and show that very different spectral shapes can be expected. We describe physical diagnostics to constrain the properties of the relativistic outflow, the physical conditions in the shocked medium and the dominant radiative process.

Affiliated with

Also associated with

No associations

Rating

GRB prompt emission from internal shocks: spectral slope in the low gamma-ray range, high-energy photons and optical prompt emission 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 GRB prompt emission from internal shocks: spectral slope in the low gamma-ray range, high-energy photons and optical prompt emission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GRB prompt emission from internal shocks: spectral slope in the low gamma-ray range, high-energy photons and optical prompt emission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1111352