Pair Production and Annihilation in Gamma-ray Bursts PDF Download
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Author: Brian John Carrigan
Publisher:
ISBN:
Category : Annihilation reactions
Languages : en
Pages : 256
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Author: Brian John Carrigan
Publisher:
ISBN:
Category : Annihilation reactions
Languages : en
Pages : 256
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Book Description
Author: Cheng Ho
Publisher: Cambridge University Press
ISBN: 9780521414494
Category : Nature
Languages : en
Pages : 532
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Book Description
Summarizes the current understanding of Astronomical gamma-ray bursts, short-lived flashes of high-energy radiation, which have eluded even a basic explanation for over twenty years, and describes directions for future research.
Author: Bing Zhang
Publisher: Cambridge University Press
ISBN: 1107027616
Category : History
Languages : en
Pages : 617
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Book Description
A complete text on the physics of gamma-ray bursts, the most brilliant explosions since the Big Bang.
Author: Luciano Rezzolla
Publisher: OUP Oxford
ISBN: 0191509914
Category : Science
Languages : en
Pages : 752
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Book Description
Relativistic hydrodynamics is a very successful theoretical framework to describe the dynamics of matter from scales as small as those of colliding elementary particles, up to the largest scales in the universe. This book provides an up-to-date, lively, and approachable introduction to the mathematical formalism, numerical techniques, and applications of relativistic hydrodynamics. The topic is typically covered either by very formal or by very phenomenological books, but is instead presented here in a form that will be appreciated both by students and researchers in the field. The topics covered in the book are the results of work carried out over the last 40 years, which can be found in rather technical research articles with dissimilar notations and styles. The book is not just a collection of scattered information, but a well-organized description of relativistic hydrodynamics, from the basic principles of statistical kinetic theory, down to the technical aspects of numerical methods devised for the solution of the equations, and over to the applications in modern physics and astrophysics. Numerous figures, diagrams, and a variety of exercises aid the material in the book. The most obvious applications of this work range from astrophysics (black holes, neutron stars, gamma-ray bursts, and active galaxies) to cosmology (early-universe hydrodynamics and phase transitions) and particle physics (heavy-ion collisions). It is often said that fluids are either seen as solutions of partial differential equations or as "wet". Fluids in this book are definitely wet, but the mathematical beauty of differential equations is not washed out.
Author: Jay D. Salmonson
Publisher:
ISBN:
Category :
Languages : en
Pages : 382
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Book Description
Author: Geoffrey James Hueter
Publisher:
ISBN:
Category :
Languages : en
Pages : 644
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Book Description
Author: Gilbert Vedrenne
Publisher: Springer Science & Business Media
ISBN: 354039088X
Category : Science
Languages : en
Pages : 613
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Book Description
Since their discovery was first announced in 1973, gamma-ray bursts (GRBs) have been among the most fascination objects in the universe. While the initial mystery has gone, the fascination continues, sustained by the close connection linking GRBs with some of the most fundamental topics in modern astrophysics and cosmology. Both authors have been active in GRB observations for over two decades and have produced an outstanding account on both the history and the perspectives of GRB research.
![The Escape Of] MeV Photons from Cosmological Gamma-ray Bursts PDF](https://books.google.com/books/content/images/frontcover/uga1AQAACAAJ?fife=w80-h100)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
The recent BATSE result indicates that gamma-ray bursts may be at cosmological distances. AS such one must reconcile the high photon densities with the observations of spectra to energies well above the pair production threshold. We have investigated two models of relativistic flows that could provide the requiste beaming to allow the escape of 100 MeV photons: a stationary relativistic wind with a photosphere and a relativistic expanding shell. For typical cosmological gamma-ray burst parameters, the expanding shell model requires a Lorentz factor ([gamma]) of only 102 compared with 3 × 102 to 103 for the relativistic wind. For the expanding shell model, events separated in time at the central source produce peaks observed to be separated by the same time. However, the shape and duration of the peaks are determined by the expansion. The expansion can occur over a much longer time (by [gamma]2) then the duration that the observer sees so gamma-ray burst could be larger than 102 light-seconds. We have made two crucial assumptions need require further study. The spectrum has been assumed to a be a power law and a two component power law or a power law with a high-energy cut-off would decrease the required [gamma]. The expanding shell model uses a infinitely thin emitting surface and one with a finite thickness could increase the required [gamma].
Author: Jay Preston Norris
Publisher:
ISBN:
Category : Gamma ray astronomy
Languages : en
Pages : 570
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Book Description
Author: W. Neil Johnson
Publisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 764
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Book Description
