Searching For The Long Duration Gamma Ray Burst Progenitor
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Searching for the Long Duration Gamma Ray Burst Progenitor
Author | : Robert Allan Mesler III |
Publsiher | : Springer |
Total Pages | : 111 |
Release | : 2014-05-28 |
Genre | : Science |
ISBN | : 9783319066264 |
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Nominated as an outstanding thesis by the Department of Physics and Astronomy of the University of New Mexico, this thesis seeks to identify the gamma-ray burst (GRB) progenitor. GRBs are extragalactic explosions that briefly outshine entire galaxies, but the mechanism that can release that much energy over a 100 second burst is still a mystery. The leading candidate for the GRB progenitor is currently a massive star which collapses to form a black hole–accretion disk system that powers the GRB. GRB afterglows, however, do not always show the expected behavior of a relativistic blast wave interacting with the stellar wind that such a progenitor should have produced before its collapse./pppIn this book, the author uses the Zeus-MP astrophysical hydrodynamics code to model the environment around a stellar progenitor prior to the burst. He then develops a new semi-analytic MHD and emission model to produce light curves for GRBs encountering these realistic density profiles. The work ultimately shows that the circumburst medium surrounding a GRB at the time of the explosion is much more complex than a pure wind, and that observed afterglows are entirely consistent with a large subset of proposed stellar progenitors.
The Physics of Gamma Ray Bursts
Author | : Bing Zhang |
Publsiher | : Cambridge University Press |
Total Pages | : 617 |
Release | : 2018-12-13 |
Genre | : Nature |
ISBN | : 9781107027619 |
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A complete text on the physics of gamma-ray bursts, the most brilliant explosions since the Big Bang.
Gamma Ray Bursts
Author | : Andrew Levan |
Publsiher | : Unknown |
Total Pages | : 250 |
Release | : 2018-12-21 |
Genre | : Science |
ISBN | : 0750315008 |
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As the most powerful explosion that occurs in the universe, gamma-ray bursts (GRBs) are one of the most exciting topics being studied in astrophysics. Creating more energy than the Sun does in its entire lifetime, GRBs create a blaze of light that will outshine every other object visible in the sky, enabling us to measure galaxies that are several million years old.GRBs cover various areas of astronomy and interest in them reaches a wide range of fields. Andrew Levan explores the fascinating history of these astronomical occurrences and details our current understanding of GRBs. The science behind them is rapidly moving and this book examines the knowledge that we now have as well as the questions that are continually being raised. Predominantly aimed at PhD students and researchers in the area, Gamma-Ray Bursts addresses this captivating topic and outlines the principles and initial applications of a fascinating astronomical phenomena.
Gamma Ray Bursts 30 Years of Discovery
Author | : E.E. Fenimore,Mark Galassi |
Publsiher | : American Institute of Physics |
Total Pages | : 812 |
Release | : 2004-10-21 |
Genre | : Science |
ISBN | : UOM:39015059173479 |
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In the last thirty years, gamma-ray bursts have grown from an oddity to a central position in astrophysics. Not only are they the largest explosions since the big bang, capable of flooding most of the universe with gamma-rays, but their brilliance serves as a backlight that can illuminate the cosmos far deeper into the early universe than any other object. Their unpredictability has forced researchers to use extreme measures to observe them: completely autonomous satellites and robotic ground-based telescopes. Their bizarre physical properties have pushed us to develop new theories of astrophysical explosions. Topics include: global properties of GRBs; X-ray flashes; ultra-high energy gamma-rays, neutrinos, gravity waves; prompt emission and early afterglows; relativistic jets and polarization; GRB030329; GRB progenitors; GRB connection to supernovae; dark versus bright GRBs; late afterglows; GRBs and cosmology; general observations; general theory; analysis and observation techniques; present satellites; Swift satellite; future satellites; and robotic observing systems.
Gamma Ray Bursts 15 Years of GRB Afterglows
Author | : Javier Gorosabel |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2013 |
Genre | : Science |
ISBN | : 275981002X |
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Gamma-ray bursts (GRB) are amongst the most energetic phenomena in the Universe. In 1997 (more than 15 years ago), BeppoSAX allowed the detection of the first GRB X-ray afterglow, leading to the detection of afterglows at other wavelengths (optical, radio) in the following years, probing the cosmological distance scale. There are still many other open issues which still need to be addressed, regarding both theoretical and observational aspects: prompt emission and afterglow physics, progenitors (including Pop III stars), host galaxies, multi-messenger information, etc.
Gamma ray Bursts
Author | : Chryssa Kouveliotou,Ralph A. M. J. Wijers,Stan Woosley |
Publsiher | : Cambridge University Press |
Total Pages | : 361 |
Release | : 2012-11-22 |
Genre | : Nature |
ISBN | : 9780521662093 |
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A comprehensive graduate-level review of GRB astrophysics and its history, featuring the latest research by an international team of experts.
Cosmic Rays
Author | : Zbigniew Piotr Szadkowski |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2018 |
Genre | : Cosmic rays |
ISBN | : 1838816992 |
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Gamma Ray Bursts in the Afterglow Era
Author | : Enrico Costa,Filippo Frontera,J. HJORTH (Ed) |
Publsiher | : Springer Science & Business Media |
Total Pages | : 484 |
Release | : 2001-12-14 |
Genre | : Nature |
ISBN | : 3540427716 |
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The information received from BeppoSAX, Chandra and other instruments in the last two years has more than doubled the number of samples of Gamma-Ray Bursts localized and followed up for afterglow search. This has also increased the interest of astronomers in GRBs. This book reviews the research of the last two years and covers the global properties of GRBs, GRB afterglows, GRB host galaxies, cosmology using GRBs, and theories for GRBs and their afterglows. Theoretical and observational aspects are presented as well as tools for the analysis of the data.