Mathematics – Logic
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ragt.meet..301t&link_type=abstract
In Proceedings of RAGtime 6/7: Workshops on black holes and neutron stars, Opava, 16-18/18-20 September, 2004/2005; S. Hledík an
Mathematics
Logic
Gamma-Ray Burst, Supernova, Collapsar, Neutron Star, Black Hole, Accretion Disk, Relativistic Jets, Afterglows
Scientific paper
Gamma-ray bursts (GRBs) represent an intersection in many astro-fields, and a more complete understanding of their basic processes will have a broad impact in many areas. Long-duration GRBs (LGRBs) represent a final stage in the evolution of massive stars, and have been directly linked to supernovae; they may also explain events such as X-ray flashes. Due to their high energies, LGRBs have been observed out to cosmological distances, redshift z > 6.2; as short lived massive stars, they trace out star forming regions and give valuable information about galactic evolution through a large range of epochs. They have even been recommended as having properties of ``standard candles,'' for testing cosmology to far greater depths than Type Ia SNe. Finally, LGRBs are an interesting test ground for general relativity. We discuss some observed properties, recent theoreties and problems in the field, in relation to such topics as GRB progenitors, the collapsar model, host galaxies, and jet phenomena.
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