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Gamma-ray bursts as cool synchrotron sources
Nature Astronomy, 2018Gamma-ray bursts (GRBs) are the most energetic electromagnetic sources in the Universe, releasing 10 42 –10 47 J (refs. 1 , 2 ) in prompt gamma-ray radiation.
J. Burgess +9 more
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Formation of very strongly magnetized neutron stars - Implications for gamma-ray bursts
, 1992It is proposed that the main observational signature of magnetars, high-field neutron stars, is gamma-ray bursts powered by their vast reservoirs of magnetic energy.
R. Duncan, C. Thompson
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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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AIP Conference Proceedings, 2006
AGILE is a Scientific Mission dedicated to high‐energy astrophysics supported by ASI with scientific participation of INAF and INFN. The AGILE instrument is designed to simultaneously detect and image photons in the 30 MeV – 50 GeV and 15 – 45 keV energy bands with excellent imaging and timing capabilities, and a large field of view covering ∼ 1/5 of ...
LONGO, FRANCESCO +53 more
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AGILE is a Scientific Mission dedicated to high‐energy astrophysics supported by ASI with scientific participation of INAF and INFN. The AGILE instrument is designed to simultaneously detect and image photons in the 30 MeV – 50 GeV and 15 – 45 keV energy bands with excellent imaging and timing capabilities, and a large field of view covering ∼ 1/5 of ...
LONGO, FRANCESCO +53 more
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Identification of two classes of gamma-ray bursts
, 1993We have studied the duration distribution of the gamma-ray bursts of the first BATSE catalog. We find a bimodality in the distribution, which separates GRBs into two classes: short events (less than 2 s) and longer ones (more than 2 s).
C. Kouveliotou +7 more
semanticscholar +1 more source
SuperAGILE and Gamma Ray Bursts
AIP Conference Proceedings, 2006The solid‐state hard X‐ray imager of AGILE gamma‐ray mission — SuperAGILE — has a six arcmin on‐axis angular resolution in the 15–45 keV range, a field of view in excess of 1 steradian. The instrument is very light: 5 kg only. It is equipped with an on‐board self triggering logic, image deconvolution, and it is able to transmit the coordinates of a GRB
L. PACCIANI +15 more
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AIP Conference Proceedings, 2005
We follow the evolution of binary systems that include rotational processes for both stars. Neglecting magnetic fields, we show that the cores of massive stars can maintain a high specific angular momentum (j~1017 cm2 s-1) when evolved with the assumption that mean molecular weight gradient suppress rotational mixing processes.
Petrovic, J., Langer, N.
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We follow the evolution of binary systems that include rotational processes for both stars. Neglecting magnetic fields, we show that the cores of massive stars can maintain a high specific angular momentum (j~1017 cm2 s-1) when evolved with the assumption that mean molecular weight gradient suppress rotational mixing processes.
Petrovic, J., Langer, N.
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Annual Review of Astronomy and Astrophysics, 1990
Article de synthese sur les sources et les sursauts R γ traitant du comportement temporel, des positions, de la distribution spatiale et des spectres d ...
Richard E. Lingenfelter, J. C. Higdon
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Article de synthese sur les sources et les sursauts R γ traitant du comportement temporel, des positions, de la distribution spatiale et des spectres d ...
Richard E. Lingenfelter, J. C. Higdon
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AIP Conference Proceedings, 1994
We present preliminary results of a study of BATSE spectra of gamma‐ray bursts (GRBs). Our ultimate aim is to investigate short‐duration as well as long‐duration GRBs and to focus the analysis on possible similarities and differences between the two populations. We present here spectral properties obtained from both time‐integrated counts and from time‐
DE PAOLIS, Francesco +2 more
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We present preliminary results of a study of BATSE spectra of gamma‐ray bursts (GRBs). Our ultimate aim is to investigate short‐duration as well as long‐duration GRBs and to focus the analysis on possible similarities and differences between the two populations. We present here spectral properties obtained from both time‐integrated counts and from time‐
DE PAOLIS, Francesco +2 more
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2004
Historical developments in the field of gamma-ray bursts are briefly reviewed. Both observational and theoretical progresses are discussed. Steps toward measuring the distances of γ-ray bursts, toward building the standard fireball internal-external shock model, are discussed in some detail.
Yong-Feng Huang +3 more
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Historical developments in the field of gamma-ray bursts are briefly reviewed. Both observational and theoretical progresses are discussed. Steps toward measuring the distances of γ-ray bursts, toward building the standard fireball internal-external shock model, are discussed in some detail.
Yong-Feng Huang +3 more
openaire +2 more sources