منابع مشابه
Gravitational Waves and γ-Ray Bursts
Coalescing binaries in distant galaxies are one of the most promising sources of gravitational waves detectable by the LIGO project.[1−5] They are also a copious source of neutrinos, however these neutrino pulses are far too weak to be detected on earth. Several years ago Eichler et al. [6] suggested that they are also sources of γ-ray bursts (GRBs). Recently it was found that GRBs are likely t...
متن کاملPulsar’s kicks and γ-ray bursts
Aims. The supernova-GRB (γ-ray burst) association is tested by showing the consistence of the distributions of pulsar’s kick velocities and GRB energies, under the assumption that cosmic GRBs are related to supernova explosions that form pulsars. Methods. These two distributions are derived from observations, and are checked by K-S test. Results. The deduced distribution of kick velocity from t...
متن کاملStability of Fireballs and Γ-ray Bursts
Fireballs are an essential part of any cosmological γ-ray burst. We derive here a stability criterion for fireballs and show that fireballs are Rayleigh-Taylor unstable in any region in which the entropy decreases outward. The instability begins to operate when the fireball becomes matter dominated. Among the possible implication of the instability are: (i) Conversion of a fraction of the radia...
متن کاملNon-photonic emission from γ-ray bursts
γ−ray bursts (GRBs) are likely sources of ultra-high energy, > 1019 eV, protons and high energy, > 1 TeV, neutrinos. Large volume detectors of ultra high energy cosmic rays (UHECRs) and high energy neutrinos, which are already operating and are being expanded, may allow to test in the coming few years the predictions of the GRB model for high energy proton and neutrino production. Detection of ...
متن کاملDelayed Nickel Decay in γ-ray bursts
Recently observed emission lines in the X-ray afterglow of gamma ray bursts suggest that iron group elements are either produced in the γ-ray burst or are present nearby. If this material is the product of a thermonuclear burn, then such material would be expected to be rich in Nickel-56. If the nickel remains partially ionized, this prevents the electron capture reaction normally associated wi...
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ژورنال
عنوان ژورنال: Nature
سال: 1991
ISSN: 0028-0836,1476-4687
DOI: 10.1038/349103a0