Collisional mechanism for GRB emission

Abstract

Nuclear and Coulomb collisions in GRB jets create a hot electron-positron plasma. This collisional heating starts when the jet is still opaque and extends to the transparent region. The e+- plasma radiates its energy. As a result, a large fraction of the jet energy is converted to escaping radiation with a well-defined spectrum. The process is simulated in detail using the known rates of collisions and accurate calculations of radiative transfer in the expanding jet. The result reproduces the spectra of observed GRBs that typically peak near 1 MeV and extend to much higher energies with a photon index β~ -2.5. This suggests that collisional heating may be the main mechanism for GRB emission.

15 pages, 7 figures, accepted to MNRAS

References in corpus (12)

• Fermi Observations of GRB 090902B: A Distinct Spectral Component in the Prompt and Delayed Emission
• Identification and properties of the photospheric emission in GRB090902B
• On the generation of high energy photons detected by the Fermi Satellite from gamma-ray bursts
• GeV emission from Gamma Ray Bursts: a radiative fireball?
• Evidence of an initially magnetically dominated outflow in GRB 080916C
• Very high efficiency photospheric emission in long duration gamma-ray bursts
• Spectral and timing properties of a dissipative GRB photosphere
• On the Conditions for Neutron-Rich Gamma-Ray Burst Outflows
• Slow Heating Model of Gamma-Ray Burst: Photon Spectrum and Delayed Emission
• Fast optical variability of Naked-Eye Burst - manifestation of periodic activity of internal engine
• Prospects for GRB Science with the Fermi Large Area Telescope
• Neutron-rich gamma-ray burst flows: dynamics and particle creation in neutron - proton collisions

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