Toward an Understanding of the Progenitors of Gamma-Ray Bursts

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Author :
Publisher : Universal-Publishers
ISBN 13 : 1581121695
Total Pages : 198 pages
Book Rating : 4.5/5 (811 download)

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Book Synopsis Toward an Understanding of the Progenitors of Gamma-Ray Bursts by : Joshua S. Bloom

Download or read book Toward an Understanding of the Progenitors of Gamma-Ray Bursts written by Joshua S. Bloom and published by Universal-Publishers. This book was released on 2002 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The various possibilities for the origin ("progenitors") of gamma-ray bursts (GRBs) manifest in differing observable properties. Through deep spectroscopic and high-resolution imaging observations of some GRB hosts, I demonstrate that well-localized long-duration GRBs are connected with otherwise normal star-forming galaxies at moderate redshifts of order unity. Using high-mass binary stellar population synthesis models, I quantify the expected spatial extent around galaxies of coalescing neutron stars, one of the leading contenders for GRB progenitors. I then test this scenario by examining the offset distribution of GRBs about their apparent hosts making extensive use of ground-based optical data from Keck and Palomar and space-based imaging from the Hubble Space Telescope. The offset distribution appears to be inconsistent with the coalescing neutron star binary hypothesis (and, similarly, black-hole--neutron star coalescences); instead, the distribution is statistically consistent with a population of progenitors that closely traces the ultra-violet light of galaxies. This is naturally explained by bursts which originate from the collapse of massive stars ``collapsars''). This claim is further supported by the unambiguous detections of intermediate-time (approximately three weeks after the bursts) emission ``bumps'' which appear substantially more red than the afterglows themselves. I claim that these bumps could originate from supernovae that occur at approximately the same time as the associated GRB; if true, GRB 980326 and GRB 011121 provide strong observational evidence connecting cosmological GRBs to high-redshift supernovae and implicate massive stars as the progenitors of at least some long-duration GRBs.

Searching for the Long-Duration Gamma-Ray Burst Progenitor

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Author :
Publisher : Springer
ISBN 13 : 3319066269
Total Pages : 111 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Searching for the Long-Duration Gamma-Ray Burst Progenitor by : Robert Allan Mesler III

Download or read book Searching for the Long-Duration Gamma-Ray Burst Progenitor written by Robert Allan Mesler III and published by Springer. This book was released on 2014-05-28 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Gamma-Ray Bursts: 30 Years of Discovery

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Publisher : American Institute of Physics
ISBN 13 :
Total Pages : 812 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Gamma-Ray Bursts: 30 Years of Discovery by : E.E. Fenimore

Download or read book Gamma-Ray Bursts: 30 Years of Discovery written by E.E. Fenimore and published by American Institute of Physics. This book was released on 2004-10-21 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Deciphering the Ancient Universe with Gamma-Ray Bursts

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Publisher : American Institute of Physics
ISBN 13 : 9780735408296
Total Pages : 0 pages
Book Rating : 4.4/5 (82 download)

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Book Synopsis Deciphering the Ancient Universe with Gamma-Ray Bursts by : Nobuyuki Kawai

Download or read book Deciphering the Ancient Universe with Gamma-Ray Bursts written by Nobuyuki Kawai and published by American Institute of Physics. This book was released on 2010-11-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gamma-ray bursts (GRBs) are the most luminous and violent explosions detectable out to the edge of the observable Universe. As soon as their cosmological origin was established, it became apparent that GRBs can serve as powerful probes of the high-redshift Universe. The association of long GRBs with the deaths of massive stars imply that they trace the sites and history of massive star formation. Their optical and near-infrared afterglows reveal spectral imprints of their environments, including the interstellar medium of their host galaxies as well as the intergalactic medium during cosmic reionization. With the Swift Observatory in orbit, such expectations are now being materialized. With GRB 050904, we found that the Universe was already largely ionized at z=6.3. The discovery of GRB 090423 at z~8.2, the most distant astrophysical object known to date, clearly demonstrates that in the coming years, GRBs will offer us an unprecedented view into the mysterious era of cosmic reionization and the formation of the first stars and galaxies. And yet, our knowledge concerning the GRBs themselves remain appallingly meager, such as their progenitors, their true energetics, the mechanisms of jet formation, particle acceleration and prompt emission, etc. The aim of this conference is to discuss the latest observational and theoretical developments in this exciting field of GRBs, with a strong emphasis on their use as probes of the high redshift universe. Non-GRB studies of the high redshift Universe, involving e.g. supernovae, galaxies, quasars and background radiation, are also essential elements of this conference.

The Physics of Gamma-Ray Bursts

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Author :
Publisher : Cambridge University Press
ISBN 13 : 1107027616
Total Pages : 617 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis The Physics of Gamma-Ray Bursts by : Bing Zhang

Download or read book The Physics of Gamma-Ray Bursts written by Bing Zhang and published by Cambridge University Press. This book was released on 2018-12-13 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete text on the physics of gamma-ray bursts, the most brilliant explosions since the Big Bang.

Gamma-ray Bursts

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Publisher : Cambridge University Press
ISBN 13 : 9780521414494
Total Pages : 532 pages
Book Rating : 4.4/5 (144 download)

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Book Synopsis Gamma-ray Bursts by : Cheng Ho

Download or read book Gamma-ray Bursts written by Cheng Ho and published by Cambridge University Press. This book was released on 1992-03-12 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

The Impact of Binary Stars on Stellar Evolution

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Publisher : Cambridge University Press
ISBN 13 : 1108681948
Total Pages : 359 pages
Book Rating : 4.1/5 (86 download)

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Book Synopsis The Impact of Binary Stars on Stellar Evolution by : Giacomo Beccari

Download or read book The Impact of Binary Stars on Stellar Evolution written by Giacomo Beccari and published by Cambridge University Press. This book was released on 2019-04-18 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stars are mostly found in binary and multiple systems, with at least 50% of all solar-like stars having companions; this fraction approaches 100% for the most massive stars. A large proportion of these systems interact and alter the structure and evolution of their components, leading to exotic objects such as Algol variables, blue stragglers and other chemically peculiar stars, but also to phenomena such as non-spherical planetary nebulae, supernovae and gamma-ray bursts. While it is understood that binaries play a critical role in the Initial Mass Function, the interactions among binary systems significantly affect the dynamical evolution of stellar clusters and galaxies. This interdisciplinary volume presents results from state-of-the-art models and observations aimed at studying the impact of binaries on stellar evolution in resolved and unresolved populations. Serving as a bridge between observational and theoretical astronomy, it is a comprehensive review for researchers and advanced students of astrophysics.

Gamma-ray Bursts

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Publisher : Cambridge University Press
ISBN 13 : 0521662095
Total Pages : 361 pages
Book Rating : 4.5/5 (216 download)

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Book Synopsis Gamma-ray Bursts by : Chryssa Kouveliotou

Download or read book Gamma-ray Bursts written by Chryssa Kouveliotou and published by Cambridge University Press. This book was released on 2012-11-22 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive graduate-level review of GRB astrophysics and its history, featuring the latest research by an international team of experts.

Top 15 Unexplained Cosmic Events

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Author :
Publisher : Jade Summers
ISBN 13 :
Total Pages : 81 pages
Book Rating : 4.2/5 (271 download)

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Book Synopsis Top 15 Unexplained Cosmic Events by : Jade Summers

Download or read book Top 15 Unexplained Cosmic Events written by Jade Summers and published by Jade Summers. This book was released on 2024-06-01 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Top 15 Unexplained Cosmic Events" Embark on a Journey Through the Mysteries of the Universe "Top 15 Unexplained Cosmic Events" takes you on an extraordinary voyage into the depths of space, where the unknown reigns supreme. This fascinating book delves into fifteen of the most perplexing and awe-inspiring cosmic phenomena that have left scientists and astronomers scratching their heads. From the eerie Wow! Signal to mysterious fast radio bursts, and the enigmatic Oumuamua object, each chapter unravels a cosmic enigma that challenges our understanding of the universe. With compelling narratives and cutting-edge research, this book is an essential read for space enthusiasts and anyone captivated by the mysteries of the cosmos. Uncover the secrets of these extraordinary events, explore the leading theories, and marvel at the boundless wonders of space. As you delve into each cosmic mystery, you'll find yourself questioning the very fabric of our universe and the possibilities that lie beyond our reach. Are you ready to explore the unexplained mysteries of the cosmos?

The Tenth Marcel Grossmann Meeting

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Author :
Publisher : World Scientific
ISBN 13 : 9812569790
Total Pages : 844 pages
Book Rating : 4.8/5 (125 download)

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Book Synopsis The Tenth Marcel Grossmann Meeting by : M. Novello

Download or read book The Tenth Marcel Grossmann Meeting written by M. Novello and published by World Scientific. This book was released on 2005 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Marcel Grossmann meetings were conceived to promote theoretical understanding in the fields of physics, mathematics, astronomy and astrophysics and to direct future technological, observational, and experimental efforts. They review recent developments in gravitation and general relativity, with major emphasis on mathematical foundations and physical predictions. Their main objective is to bring together scientists from diverse backgrounds and their range of topics is broad, from more abstract classical theory and quantum gravity and strings to more concrete relativistic astrophysics observations and modeling. This Tenth Marcel Grossmann Meeting was organized by an international committee composed of D Blair, Y Choquet-Bruhat, D Christodoulou, T Damour, J Ehlers, F Everitt, Fang Li Zhi, S Hawking, Y Ne'eman, R Ruffini (chair), H Sato, R Sunyaev, and S Weinberg and backed by an international coordinating committee of about 135 members from scientific institutions representing 54 countries. The scientific program included 29 morning plenary talks during 6 days, and 57 parallel sessions over five afternoons, during which roughly 500 papers were presented. These three volumes of the proceedings of MG10 give a broad view of all aspects of gravitation, from mathematical issues to recent observations and experiments. Sample Chapter(s) Part A: Plenary and Review Talks The Initial Value Problem Using Metric and Extrinsic Curvature (566k) Part B: Plenary and Review Talks The Largest Optical Telescopes: Today VLT; Tomorrow Owl. (951k) Part C: Parallel Sessions Numerical Simulation of General Relativistic Stellar Collapse (1,337k) Contents: The Initial Value Problem Using Metric and Extrinsic Curvature "(J W York Jr)"Mathematics, Physics and Ping-Pong "(Y Ne'eman)"Thermal Decay of the Cosmological Constant into Black Holes "(C Teitelboim)"Structure Formation in the Universe by Exact Methods "(A Krasinski & C Hellaby)"Overview of D-brane Worlds in String Theory "(A M Uranga)"Tachyons, D-brane Decay, and Closed Strings "(B Zwiebach)"String Compactifications -- Old and New "(A Dabholkar)"Covariant Quantization of the Superstring "(N Berkovits)"Limiting Braneworlds with the Binary Pulsar "(R Durrer & P Kocian)"Cosmological Instabilities from Vector Perturbations in Braneworlds "(R Durrer et al.)"Principles of Affine Quantum Gravity "(J R Klauder)"Developments in GRworkbench "(A Moylan et al.)"Constants of Nature? "(H B Sandvik)"Gravitational Wave Detection: A Survey of the Worldwide Program "(J Degallaix & D Blair)"Evidence for Coincident Events Between the Gravitational Wave Detectors EXPLORER and NAUTILUS "(G Pizzella)"The LIGO Gravitational Wave Observatories: Recent Results and Future Plans "(G M Harry et al.)"General Relativity in Space and Sensitive Tests of the Equivalence Principle "(C Lammerzahl)"Multiwavelength Afterglows of Gamma-Ray Bursts "(E Pian)"Black Hole Physics and Astrophysics: The GRB-Supernova Connection and URCA-1 -- URCA-2 "(R Ruffini et al.)"Black Holes from the Dark Ages: Exploring the Reionization Era and Early Structure Formation with Quasars and Gamma-Ray Bursts "(S G Djorgovski)"The Diagnostic Power of X-Ray Emission Lines in GRBs "(M Bottcher)"

Gamma-ray Bursts

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Publisher : Cambridge University Press
ISBN 13 : 1139576488
Total Pages : 361 pages
Book Rating : 4.1/5 (395 download)

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Book Synopsis Gamma-ray Bursts by : Chryssa Kouveliotou

Download or read book Gamma-ray Bursts written by Chryssa Kouveliotou and published by Cambridge University Press. This book was released on 2012-11-22 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmic gamma ray bursts (GRBs) have fascinated scientists and the public alike since their discovery in the late 1960s. Their story is told here by some of the scientists who participated in their discovery and, after many decades of false starts, solved the problem of their origin. Fourteen chapters by active researchers in the field present a detailed history of the discovery, a comprehensive theoretical description of GRB central engine and emission models, a discussion of GRB host galaxies and a guide to how GRBs can be used as cosmological tools. Observations are grouped into three sets from the satellites CGRO, BeppoSAX and Swift, and followed by a discussion of multi-wavelength observations. This is the first edited volume on GRB astrophysics that presents a fully comprehensive review of the subject. Utilizing the latest research, Gamma-ray Bursts is an essential desktop companion for graduate students and researchers in astrophysics.

Stellar Explosions

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Publisher : CRC Press
ISBN 13 : 1439853088
Total Pages : 472 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Stellar Explosions by : Jordi Jose

Download or read book Stellar Explosions written by Jordi Jose and published by CRC Press. This book was released on 2016-01-05 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stars are the main factories of element production in the universe through a suite of complex and intertwined physical processes. Such stellar alchemy is driven by multiple nuclear interactions that through eons have transformed the pristine, metal-poor ashes leftover by the Big Bang into a cosmos with 100 distinct chemical species. The products of

Tenth Marcel Grossmann Meeting, The: On Recent Developments In Theoretical & Experimental General Relativity, Gravitation, & Relativistic Field Theories (In 3 Vols) - Procs Of The Mgio Meeting Held At Brazilian Ctr For Res In Phys (Cbpf)

Download Tenth Marcel Grossmann Meeting, The: On Recent Developments In Theoretical & Experimental General Relativity, Gravitation, & Relativistic Field Theories (In 3 Vols) - Procs Of The Mgio Meeting Held At Brazilian Ctr For Res In Phys (Cbpf) PDF Online Free

Author :
Publisher : World Scientific
ISBN 13 : 9814478547
Total Pages : 2636 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Tenth Marcel Grossmann Meeting, The: On Recent Developments In Theoretical & Experimental General Relativity, Gravitation, & Relativistic Field Theories (In 3 Vols) - Procs Of The Mgio Meeting Held At Brazilian Ctr For Res In Phys (Cbpf) by : Novello Mario

Download or read book Tenth Marcel Grossmann Meeting, The: On Recent Developments In Theoretical & Experimental General Relativity, Gravitation, & Relativistic Field Theories (In 3 Vols) - Procs Of The Mgio Meeting Held At Brazilian Ctr For Res In Phys (Cbpf) written by Novello Mario and published by World Scientific. This book was released on 2006-02-17 with total page 2636 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Marcel Grossmann meetings were conceived to promote theoretical understanding in the fields of physics, mathematics, astronomy and astrophysics and to direct future technological, observational, and experimental efforts. They review recent developments in gravitation and general relativity, with major emphasis on mathematical foundations and physical predictions. Their main objective is to bring together scientists from diverse backgrounds and their range of topics is broad, from more abstract classical theory and quantum gravity and strings to more concrete relativistic astrophysics observations and modeling.This Tenth Marcel Grossmann Meeting was organized by an international committee composed of D Blair, Y Choquet-Bruhat, D Christodoulou, T Damour, J Ehlers, F Everitt, Fang Li Zhi, S Hawking, Y Ne'eman, R Ruffini (chair), H Sato, R Sunyaev, and S Weinberg and backed by an international coordinating committee of about 135 members from scientific institutions representing 54 countries. The scientific program included 29 morning plenary talks during 6 days, and 57 parallel sessions over five afternoons, during which roughly 500 papers were presented.These three volumes of the proceedings of MG10 give a broad view of all aspects of gravitation, from mathematical issues to recent observations and experiments.

Gamma Ray Burst Correlations

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Author :
Publisher : Iph001
ISBN 13 : 9780750315739
Total Pages : 200 pages
Book Rating : 4.3/5 (157 download)

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Book Synopsis Gamma Ray Burst Correlations by : Maria Dainotti

Download or read book Gamma Ray Burst Correlations written by Maria Dainotti and published by Iph001. This book was released on 2019-08-15 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impressively, gamma-ray bursts (GRBs) release the same amount of energy in a mere matter of seconds as the sun does in its lifetime. Gamma-ray Burst Correlations presents an overview of the observational correlations; their physical interpretations; their use as redshift estimators; and their potential use as cosmological tools. The author describes the existing correlations as well as breaching the possible meaning and controversy behind the results, and the applicability of several GRB correlations as model discriminators and cosmological indicators. A description of selection bias and the attempts made so far in order to use them as standard candles can help scientists to find the key to solve this puzzling problem. Covering an ever-expanding topic, this book will reach a wide audience, including students and researchers within the astronomical community.

Gamma-Ray Burst and Afterglow Astronomy 2001

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Author :
Publisher : American Institute of Physics
ISBN 13 :
Total Pages : 618 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Gamma-Ray Burst and Afterglow Astronomy 2001 by : G.R. Ricker

Download or read book Gamma-Ray Burst and Afterglow Astronomy 2001 written by G.R. Ricker and published by American Institute of Physics. This book was released on 2003-05-08 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains the papers from both the poster and oral presentations presented at the Workshop celebrating the first year of the HETE mission. The HETE mission, launched on 9 October 2000, has dramatically quickened the pace of GRB discoveries. By disseminating accurate burst coordinates to the astronomical community within a minute of the burst onset, HETE has made possible the panchromatic observation of the early, bright phases of the relativistic fireball expansion in several GRB afterglows. The scientific program covered the rapidly expanding range of GRB research, with roughly half of the sessions being devoted to prompt burst emission, and half to burst afterglows, both from observational and theoretical perspectives. In particular, 26 papers presented in the section on the HETE Satellite Mission comprise both a tutorial on the spacecraft and its instruments, as well as a summary of early scientific results. In addition, special sessions, such as the session devoted to soft gamma repeaters, were devoted to future missions and instrumentation.

Handbook of X-ray and Gamma-ray Astrophysics

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Author :
Publisher : Springer Nature
ISBN 13 : 9811969604
Total Pages : 5912 pages
Book Rating : 4.8/5 (119 download)

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Book Synopsis Handbook of X-ray and Gamma-ray Astrophysics by : Cosimo Bambi

Download or read book Handbook of X-ray and Gamma-ray Astrophysics written by Cosimo Bambi and published by Springer Nature. This book was released on with total page 5912 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Gamma-Ray Bursts

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 354039088X
Total Pages : 613 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Gamma-Ray Bursts by : Gilbert Vedrenne

Download or read book Gamma-Ray Bursts written by Gilbert Vedrenne and published by Springer Science & Business Media. This book was released on 2009-03-20 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.