منابع مشابه
Cosmic Gamma - Ray Bursts
1. Abstract GRBs have remained a puzzle for many high–energy astrophysicists since their discovery in 1967. With the advent of the X–ray satellites BeppoSAX and RossiXTE, it has been possible to carry out deep multi-wavelength observations of the counterparts associated with the GRBs just within a few hours of occurence, thanks to the observation of the fading X-ray emission that follows the mo...
متن کاملGamma Ray Bursts and Cosmic Ray Origin
This paper presents the theoretical basis of the fireball/blast wave model, and some implications of recent results on GRB source models and cosmic-ray production from GRBs. BATSE observations of the prompt γ-ray luminous phase, and Beppo-SAX and long wavelength afterglow observations of GRBs are briefly summarized. Derivation of spectral and temporal indices of an adiabatic blast wave decelera...
متن کاملGamma-Ray Bursts and Quantum Cosmic Censorship∗
Gamma-ray bursts are believed to result from the coalescence of binary neutron stars. However, the standard proposals for conversion of the gravitational energy to thermal energy have difficulties. We show that if the merger of the two neutron stars results in a naked singularity, instead of a black hole, the ensuing quantum particle creation can provide the requisite thermal energy in a straig...
متن کاملGamma - Ray Bursts , Cosmic - Rays and Neutrinos ∗
The γ-ray burst (GRB) model for production of ultra-high-energy, > 10 eV, cosmic-rays is based on the hypothesis that GRBs arise from the dissipation of the kinetic energy of relativistic fireballs at cosmological distances. Recent observations of delayed low energy emission, “afterglow,” from GRB sources strongly support the validity of this hypothesis. Observations also provide quantitative s...
متن کاملCosmic Gamma-ray Bursts: the Remaining Mysteries
To anyone who has read a scientific journal or even a newspaper in the last six months, it might appear that cosmic gamma-ray bursts hold no more mysteries: they are cosmological, and possibly the most powerful explosions in the Universe. In fact, however, bursts remain mysterious in many ways. There is no general agreement upon the nature of the event which releases the initial energy. One bur...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1949
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp/4.2.233