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Why galactic gamma-ray bursts might depend on environment: blast waves around neutron stars
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Meszaros, Peter Begelman, Mitchell C. Rees, Martin J. |
| Copyright Year | 1994 |
| Description | 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. |
| File Size | 321032 |
| Page Count | 5 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960007132 |
| Archival Resource Key | ark:/13960/t9188767b |
| Language | English |
| Publisher Date | 1994-01-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Gamma Rays Magnetic Flux Isotropy Actuators Stellar Envelopes Neutron Stars Plasmas Physics Astronomical Models Stellar Magnetospheres Gamma Ray Bursts Sun Interstellar Matter Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
