Physics
Scientific paper
Jan 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aipc..307..605r&link_type=abstract
Gamma-Ray Bursts, Proceedings of the 2nd Workshop held in Huntsville, Alabama, October 1993, New York: American Institute of Phy
Physics
Astronomical Models, Gamma Ray Bursts, Gamma Rays, Interstellar Matter, Isotropy, Magnetic Flux, Neutron Stars, Actuators, Plasmas (Physics), Stellar Envelopes, Stellar Magnetospheres, Sun
Scientific paper
Although galactic models for gamma-ray bursts are hard to reconcile with the isotropy data, the issue is still sufficiently open that both options should be explored. The most likely 'triggers' for bursts in our Galaxy would be violent disturbances in the magnetospheres of neutron stars. Any event of this kind is likely to expel magnetic flux and plasma at relativistic speed. Such ejecta would be braked by the interstellar medium (ISM), and a gamma-ray flash may result from this interaction. The radiative efficiency, of this mechanism would depend on the density of the circumstellar ISM. Therefore, even if neutron stars were uniformly distributed in space (at least within 1-2 kpc of the Sun), the observed locations of bursts would correlate with regions of above-average ISM density.
Begelman Mitchell C.
Meszaros Peter
Rees Martin J.
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