Toward An Understanding Of The Progenitors Of Gamma Ray Bursts

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Toward an Understanding of the Progenitors of Gamma-Ray Bursts

Author : Joshua S. Bloom
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.

Gamma-Ray Bursts

Author : Andrew Levan
Publisher :
ISBN 13 : 9780750315005
Total Pages : 250 pages
Book Rating : 4.3/5 (15 download)

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Book Synopsis Gamma-Ray Bursts by : Andrew Levan

Download or read book Gamma-Ray Bursts written by Andrew Levan and published by . This book was released on 2018-12-21 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

The Physics of Gamma-Ray Bursts

Author : Bing Zhang
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 2019 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.

Top 15 Unexplained Cosmic Events

Author : Jade Summers
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?

High-Energy Emission from Pulsars and their Systems

Author : Nanda Rea
Publisher : Springer Science & Business Media
ISBN 13 : 3642172512
Total Pages : 656 pages
Book Rating : 4.6/5 (421 download)

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Book Synopsis High-Energy Emission from Pulsars and their Systems by : Nanda Rea

Download or read book High-Energy Emission from Pulsars and their Systems written by Nanda Rea and published by Springer Science & Business Media. This book was released on 2011-02-04 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the inaugural meeting of the Sant Cugat Forum on Astrophysics was to address, in a global context, the current understanding of and challenges in high-energy emissions from isolated and non-isolated neutron stars, and to confront the theoretical picture with observations of both the Fermi satellite and the currently operating ground-based Cherenkov telescopes. Participants have also discussed the prospects for possible observations with planned instruments across the multi-wavelength spectrum (e.g. SKA, LOFAR, E-VLT, IXO, CTA) and how they will impact our theoretical understanding of these systems. In keeping with the goals of the Forum, this book not only represents the proceedings of the meeting, but also a reflection on the state-of-the-art in the topic.

The Impact of Binary Stars on Stellar Evolution

Author : Giacomo Beccari
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.

Searching for the Long-Duration Gamma-Ray Burst Progenitor

Author : Robert Allan Mesler III
Publisher : Springer
ISBN 13 : 3319066269
Total Pages : 122 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 122 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.

New Worlds, New Horizons in Astronomy and Astrophysics

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309157994
Total Pages : 324 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis New Worlds, New Horizons in Astronomy and Astrophysics by : National Research Council

Download or read book New Worlds, New Horizons in Astronomy and Astrophysics written by National Research Council and published by National Academies Press. This book was released on 2011-02-04 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Driven by discoveries, and enabled by leaps in technology and imagination, our understanding of the universe has changed dramatically during the course of the last few decades. The fields of astronomy and astrophysics are making new connections to physics, chemistry, biology, and computer science. Based on a broad and comprehensive survey of scientific opportunities, infrastructure, and organization in a national and international context, New Worlds, New Horizons in Astronomy and Astrophysics outlines a plan for ground- and space- based astronomy and astrophysics for the decade of the 2010's. Realizing these scientific opportunities is contingent upon maintaining and strengthening the foundations of the research enterprise including technological development, theory, computation and data handling, laboratory experiments, and human resources. New Worlds, New Horizons in Astronomy and Astrophysics proposes enhancing innovative but moderate-cost programs in space and on the ground that will enable the community to respond rapidly and flexibly to new scientific discoveries. The book recommends beginning construction on survey telescopes in space and on the ground to investigate the nature of dark energy, as well as the next generation of large ground-based giant optical telescopes and a new class of space-based gravitational observatory to observe the merging of distant black holes and precisely test theories of gravity. New Worlds, New Horizons in Astronomy and Astrophysics recommends a balanced and executable program that will support research surrounding the most profound questions about the cosmos. The discoveries ahead will facilitate the search for habitable planets, shed light on dark energy and dark matter, and aid our understanding of the history of the universe and how the earliest stars and galaxies formed. The book is a useful resource for agencies supporting the field of astronomy and astrophysics, the Congressional committees with jurisdiction over those agencies, the scientific community, and the public.

Gamma-Ray Bursts

Author : Gilbert Vedrenne
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.

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 : Mario Novello
Publisher : World Scientific
ISBN 13 : 9814478547
Total Pages : 2642 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 : Mario Novello

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 Mario Novello and published by World Scientific. This book was released on 2006-02-17 with total page 2642 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.

The Tenth Marcel Grossmann Meeting

Author : M. Novello
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

Author : Chryssa Kouveliotou
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.

Unsolved Problems in Astrophysics

Author : John N. Bahcall
Publisher : Princeton University Press
ISBN 13 : 9780691016061
Total Pages : 398 pages
Book Rating : 4.0/5 (16 download)

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Book Synopsis Unsolved Problems in Astrophysics by : John N. Bahcall

Download or read book Unsolved Problems in Astrophysics written by John N. Bahcall and published by Princeton University Press. This book was released on 1997-02-06 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of astrophysics is in the midst of a technological renaissance. The emphasis of this collection of essays, composed by a stellar group of astronomers and astrophysicists, is on the current state of our knowledge as a preparation for future unraveling of more mysteries of the universe, which appear most amenable to solution. Aspiring atrophysicists will be enthralled.

Stellar Explosions

Author : Jordi Jose
Publisher : CRC Press
ISBN 13 : 1439853088
Total Pages : 467 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 467 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

Gamma-Ray Burst and Afterglow Astronomy 2001

Author : G.R. Ricker
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

Author : Cosimo Bambi
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:

What Are Gamma-Ray Bursts?

Author : Joshua S. Bloom
Publisher : Princeton University Press
ISBN 13 : 1400837006
Total Pages : 271 pages
Book Rating : 4.4/5 (8 download)

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Book Synopsis What Are Gamma-Ray Bursts? by : Joshua S. Bloom

Download or read book What Are Gamma-Ray Bursts? written by Joshua S. Bloom and published by Princeton University Press. This book was released on 2011-01-10 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brief, cutting-edge introduction to the brightest cosmic phenomena known to science Gamma-ray bursts are the brightest—and, until recently, among the least understood—cosmic events in the universe. Discovered by chance during the cold war, these evanescent high-energy explosions confounded astronomers for decades. But a rapid series of startling breakthroughs beginning in 1997 revealed that the majority of gamma-ray bursts are caused by the explosions of young and massive stars in the vast star-forming cauldrons of distant galaxies. New findings also point to very different origins for some events, serving to complicate but enrich our understanding of the exotic and violent universe. What Are Gamma-Ray Bursts? is a succinct introduction to this fast-growing subject, written by an astrophysicist who is at the forefront of today's research into these incredible cosmic phenomena. Joshua Bloom gives readers a concise and accessible overview of gamma-ray bursts and the theoretical framework that physicists have developed to make sense of complex observations across the electromagnetic spectrum. He traces the history of remarkable discoveries that led to our current understanding of gamma-ray bursts, and reveals the decisive role these phenomena could play in the grand pursuits of twenty-first century astrophysics, from studying gravity waves and unveiling the growth of stars and galaxies after the big bang to surmising the ultimate fate of the universe itself. What Are Gamma-Ray Bursts? is an essential primer to this exciting frontier of scientific inquiry, and a must-read for anyone seeking to keep pace with cutting-edge developments in physics today.