Relativistic fireballs - Energy conversion and time-scales

Details Relativistic fireballs - Energy conversion and time-scales Relativistic fireballs - Energy conversion and time-scales

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.258p..41r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 258, no. 2, Sept. 15, 1992, p. 41P-43P.

Mathematics

Logic

535

Compton Effect, Gamma Ray Bursts, Neutron Stars, Relativity, Stellar Envelopes, Baryons, Fireballs, Interstellar Matter, Kinetic Energy

Scientific paper

The expansion energy of a relativistic fireball can be reconverted into radiation when it interacts with an external medium. For expansion with Lorentz factors greater than or approximately equal to 1000 into a typical galactic environment, the corresponding time-scale in the frame of the observer is of the order of seconds. This mechanism would operate in any cosmological scenario of gamma-ray bursts involving initial energies of order a percent of a stellar rest mass, and implies photon energies and time-scales compatible with those observed in gamma-ray bursts.

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