Developments in high-precision gamma-ray burst source studies
نویسندگان
چکیده
منابع مشابه
Gamma-Ray Burst Afterglows
Extended, fading emissions in multi-wavelength are observed following Gamma-ray bursts (GRBs). Recent broadband observational campaigns led by the Swift Observatory reveal rich features of these GRB afterglows. Here we review the latest observational progress and discuss the theoretical implications for understanding the central engine, composition, and geometric configuration of GRB jets, as w...
متن کاملGamma-ray burst models.
I consider various possibilities for making gamma-ray bursts, particularly from close binaries. In addition to the much-studied neutron star+neutron star and black hole+neutron star cases usually considered good candidates for short-duration bursts, there are also other possibilities. In particular, neutron star+massive white dwarf has several desirable features. These systems are likely to pro...
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We report results of our precise reduction of the high signal-to-noise V RI observations of the optical afterglow of the gamma-ray burst GRB020813 obtained by Gladders & Hall with the Magellan 6.5-m telescope 3.9 − 4.9 hours after the burst. These observations are very well fitted locally by a power-law curve, providing the tightest constraints yet on how smooth the afterglows can be in some ca...
متن کاملGamma-ray Burst Energetics
We estimate the fraction of the total energy in a Gamma-Ray Burst (GRB) that is radiated in photons during the main burst. Random internal collisions among different shells limit the efficiency for converting bulk kinetic energy to photons. About 6% of the energy of explosion is converted to radiation for long duration bursts (lasting 10s or more); the efficiency is significantly smaller for sh...
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ژورنال
عنوان ژورنال: Advances in Space Research
سال: 1983
ISSN: 0273-1177
DOI: 10.1016/0273-1177(83)90028-5