Thermal Radiation from Relativistic GRB Jets from Collapsars

Details Thermal Radiation from Relativistic GRB Jets from Collapsars Thermal Radiation from Relativistic GRB Jets from Collapsars

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1279..388m&link_type=abstract

DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS. AIP Conference Proceedings, Volume 1279, pp. 388-390 (2010).

Mathematics

Logic

Gamma-Ray Sources (Astronomical), Thermal Radiation, Astrophysical Jets, Hydrodynamics, Gamma-Ray Sources, Gamma-Ray Bursts, Thermal Radiation, Jets, Outflows, And Bipolar Flows, Hydrodynamics

Scientific paper

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.

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