Thermal Radiation from Relativistic GRB Jets from Collapsars
- Conference date: 19–23 April 2010
- Location: Terrsa, Kyoto, (Japan)
We have calculated the light curves and spectrum of the photospheric thermal radiation from gamma‐ray burst jets, using the results of the 2D relativistic hydrodynamic simulations. We find that the thermal radiation from the photosphere of the GRB jet is really ‘observable’ even for a cosmological distant GRB. The light curve is flare like for the first phases. The light curves for on‐axis observers continue and exhibit time variability due to the intenal structure of the jets in Lorentz factor and density. The spectrum consists of multicolor components and exhibits power law distribution, for each viewing angle.
- Gamma ray bursts
- Thermal radiation
- Visible spectra
- Lorentz group
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