Journal ArticleDOI
Fluid dynamics of relativistic blast waves
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In this paper, a fluid dynamical treatment of an ultra-relativistic spherical blast wave enclosed by a strong shock is presented, and a simple similarity solution describing the explosion of a fixed amount of energy in a uniform medium is derived, and generalized to include cases in which power is supplied by a central source and the density of the external medium varies with radius.Abstract:
A fluid dynamical treatment of an ultra‐relativistic spherical blast wave enclosed by a strong shock is presented. A simple similarity solution describing the explosion of a fixed amount of energy in a uniform medium is derived, and this is generalized to include cases in which power is supplied by a central source and the density of the external medium varies with radius. Radiative shocks, in which the escaping photons carry away momentum as well as energy, are also discussed. Formulas that interpolate between the non‐ and ultra‐relativistic limits are proposed.read more
Citations
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Igr j12580+0134: the first tidal disruption event with an off-beam relativistic jet
TL;DR: In this paper, the radio data of IGR J12580+0134 can be interpreted within an external forward shock model in the Newtonian regime, and it is shown that the data are consistent with an off-beam relativistic jet with a viewing angle of 30, obs o q and an initial Lorentz factor of j G a few.
Journal ArticleDOI
Challenging gamma-ray burst models through the broadband dataset of GRB 060908
Stefano Covino,Sergio Campana,M. L. Conciatore,V. D'Elia,Eliana Palazzi,Christina C. Thöne,S. D. Vergani,K. Wiersema,M. Brusasca,A. Cucchiara,B. E. Cobb,Alberto Fernández-Soto,D. A. Kann,D. Malesani,Nial R. Tanvir,L. A. Antonelli,M. Bremer,A. J. Castro-Tirado,A. de Ugarte Postigo,Emilio Molinari,Luciano Nicastro,Mauro Stefanon,Vincenzo Testa,G. Tosti,Fabrizio Vitali,Lorenzo Amati,Robert Chapman,Robert Chapman,Paolo Conconi,Giuseppe Cutispoto,Johan P. U. Fynbo,P. Goldoni,C. Henriksen,Keith Horne,G. Malaspina,E. J. A. Meurs,Elena Pian,Luigi Stella,G. Tagliaferri,P. Ward,Filippo Maria Zerbi +40 more
TL;DR: In this article, the authors collected a large dataset on GRB 060908 in order to carry out a comprehensive analysis of the prompt emission as well as the early and late afterglow.
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On the radio afterglow of gamma ray bursts
TL;DR: In this paper, the authors used the cannonball model of gamma ray bursts (GRBs) to predict the spectral and temporal behaviour of their radio afterglows (AGs) at all times and frequencies; its high-frequency limit reproduces the successful CB model predictions for optical and X-ray AGs.
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Towards Understanding the Physics of Collisionless Relativistic Shocks
Guy Pelletier,Andrei M. Bykov,Andrei M. Bykov,Andrei M. Bykov,Donald C. Ellison,Martin Lemoine +5 more
TL;DR: In this paper, a mesoscopic, non-linear model of particle acceleration in relativistic shocks based on Monte Carlo techniques is proposed, which uses a semi-phenomenological description of particle scattering which allows it to calculate the back-reaction of accelerated particles on the shock structure.
Journal ArticleDOI
Magnetars in Ultra-Long Gamma-Ray Bursts
B. P. Gompertz,A. S. Fruchter +1 more
TL;DR: In this article, the authors investigated the broadband observations of ULGRB 111209A and found two independent measures that suggest a high density circumburst environment, however, the light curve of the GRB afterglow shows no evidence of a jet break (the steep decline that would be expected as the jet slows due to the resistance of the external medium).
References
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Journal ArticleDOI
The Formation of a Blast Wave by a Very Intense Explosion. I. Theoretical Discussion
TL;DR: This paper has now been declassified, and though it has been superseded by more complete calculations, it seems appropriate to publish it as it was first written, without alteration, except for the omission of a few lines, the addition of this summary, and a comparison with some more recent experimental work as discussed by the authors.
Journal ArticleDOI
Relativistic Rankine-Hugoniot Equations
TL;DR: In this paper, the relativistic form of the Rankine-Hugoniot equations are derived and it is shown that as a consequence of the inequality mentioned earlier that the shock wave velocity is always less than that of light in vacuum for sufficiently strong shocks.