Results 271 to 280 of about 2,282,133 (297)
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Annals of the New York Academy of Sciences, 1993
The distribution of γ‐ray bursts as observed by BATSE rules out the galactic disk origin, and it is consistent with the cosmological origin. Much work is currently done to reconcile galactic halo distribution with the absence of dipole and quadrupole moments in the positions of BATSE bursts. A relativistic expansion of the source is implied by both the
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The distribution of γ‐ray bursts as observed by BATSE rules out the galactic disk origin, and it is consistent with the cosmological origin. Much work is currently done to reconcile galactic halo distribution with the absence of dipole and quadrupole moments in the positions of BATSE bursts. A relativistic expansion of the source is implied by both the
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AIP Conference Proceedings, 1983
The time histories, size spectrum, spatial distribution, and repetition rates of gamma ray bursts are reviewed briefly. Evidence for a neutron star origin for gamma ray bursts may be found in many of these aspects of bursters. New results from optical searches are described.
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The time histories, size spectrum, spatial distribution, and repetition rates of gamma ray bursts are reviewed briefly. Evidence for a neutron star origin for gamma ray bursts may be found in many of these aspects of bursters. New results from optical searches are described.
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Gamma-ray bursts and cosmology
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2007I review the current status of the use of gamma-ray bursts (GRBs) as probes of the early Universe and cosmology. I describe the promise of long GRBs as probes of the high redshift ( z >4) and very high redshift ( z >5) Universe, and several key scientific results that have come from ...
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1991
We summarize the observed features of γ-ray bursts, with particular emphasis on the cyclotron lines seen in their spectra. We then discuss the theory of cyclotron resonant scattering, and compare the theoretical and observed line spectra. Finally, we mention some implications.
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We summarize the observed features of γ-ray bursts, with particular emphasis on the cyclotron lines seen in their spectra. We then discuss the theory of cyclotron resonant scattering, and compare the theoretical and observed line spectra. Finally, we mention some implications.
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The theory of gamma-ray bursts
AIP Conference Proceedings, 1984A γ-ray burst occurs when a strongly magnetic neutron star experiences either a thermonuclear explosion in degenerate material accumulated over a long period of time or the sudden, greatly super-Eddington accretion of matter. Certain aspects of the thermonuclear model are briefly reviewed and special attention is devoted to mechanisms for producing the
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Gamma-ray Bursts: 50 Years and Counting! [PDF]
UniverseGamma-ray bursts were discovered by the Vela satellites in the late 1960s, but they were announced for the first time exactly 50 years ago, in 1973. The history of our understanding of gamma-ray bursts can be subdivided into several eras.
Alessandro Armando Vigliano
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On the origin of gamma-ray bursts
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2008Gamma-ray bursts are the most energetic explosions in the Universe, occurring at cosmological distances. The initial phase of the emission from these bursts is predominantly of gamma rays and stems from a highly relativistic outflow. The nature of this emission is still under debate.
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Swift observations of gamma-ray bursts
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2007Since its launch on 20 November 2004, the Swift mission has been detecting approximately 100 gamma-ray bursts (GRBs) each year, and immediately (within approx. 90 s) starting simultaneous X-ray and UV/optical observations of the afterglow.
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Monthly Notices of the Royal Astronomical Society, 2022
Narayan Khadka, Bharat Ratra, Shulei Cao
exaly
Narayan Khadka, Bharat Ratra, Shulei Cao
exaly
Eiso–Ep correlation of gamma-ray bursts: calibration and cosmological applications
Monthly Notices of the Royal Astronomical Society, 2022Jianping Hu, Fayin Wang, B B Zhang
exaly