Recent Results On Gamma Ray Bursts Observations From The Lilas And Apex Spatial Experiments

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RECENT RESULTS ON GAMMA-RAY BURSTS. OBSERVATIONS FROM THE LILAS AND APEX SPATIAL EXPERIMENTS

Author : Elisabeth Jourdain
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (489 download)

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Book Synopsis RECENT RESULTS ON GAMMA-RAY BURSTS. OBSERVATIONS FROM THE LILAS AND APEX SPATIAL EXPERIMENTS by : Elisabeth Jourdain

Download or read book RECENT RESULTS ON GAMMA-RAY BURSTS. OBSERVATIONS FROM THE LILAS AND APEX SPATIAL EXPERIMENTS written by Elisabeth Jourdain and published by . This book was released on 1990 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES SURSAUTS GAMMA SONT DES BOUFFEES BREVES (QUELQUES SECONDES) ET INTENSES DE PHOTONS TRES ENERGETIQUES (E 10 KEV), VRAISEMBLABLEMENT EMIS PAR DES ETOILES-A-NEUTRONS. LES PREMIERS PROGRAMMES D'ETUDE ONT MIS EN LUMIERE LES PRINCIPALES CARACTERISTIQUES DE CE PHENOMENE DECOUVERT EN 1969. DE NOUVELLES PROPRIETES ONT ETE REVELEES PAR UNE DEUXIEME GENERATION D'EXPERIENCES DONT LES DETECTEURS LILAS ET APEX, EMBARQUES SUR LES SONDES PHOBOS EN JUILLET 1988, GRACE A UNE COOPERATION ENTRE L'IKI (MOSCOU) ET LE CENTRE D'ETUDE SPATIALE DES RAYONNEMENTS (TOULOUSE). LEURS OBJECTIFS PRINCIPAUX ETAIENT: 1) L'ETUDE DES VARIABILITES INTRINSEQUES DU FLUX EMIS: LE PRINCIPE DE TIME-TO-SPILL (UN SPECTRE EST STOCKE DES QU'IL CONTIENT UN NOMBRE N DE PHOTONS, SA DUREE DIMINUANT QUAND LE FLUX AUGMENTE) PERMET L'OBSERVATION DE VARIABILITES JUSQU'ALORS INVISIBLES (ACQUISITION DE SPECTRES EN MOINS DE 20 MS); 2) LA CONNAISSANCE DU SPECTRE DES SURSAUTS GAMMA SUR UN DOMAINE EN ENERGIE ETENDU (5 KEV-1 MEV POUR LILAS, 65 KEV-9 MEV POUR APEX). LES RESULTATS PRESENTES CONCERNENT: 1) LE COMPORTEMENT DES HAUTES ENERGIES (E>2 MEV) DANS PLUSSIEURS EVENEMENTS: L'EXISTENCE D'UNE COMPOSANTE SPECTRALE PROPRE A CES ENERGIES EST MISE EN EVIDENCE; 2) LA RECHERCHE DE RAIES EN EMISSION ENTRE 200 KEV ET 1 MEV; 3) L'ETUDE D'UN EVENEMENT OBSERVE LE 24 OCTOBRE 1988. TRES INTENSE, IL SE PRETE A UNE ANALYSE PRECISE, AVEC UNE RESOLUTION TEMPORELLE ET SPECTRALE UNIQUE; 4) UNE RECHERCHE DE PERIODICITES ENGLOBANT PLUS DE 200 SURSAUTS, OBSERVES AVEC LE PROGRAMME SIGNE, SUR DEUX ECHELLES DE TEMPS: QUELQUES SECONDES ET LA CENTAINE DE MILLISECONDE; 5) L'ANALYSE DES COURBES LOG (N>C/CMIN) DANS LES BANDES SPECTRALES DES DEUX EXPERIENCES. UN DEFICIT DE HAUTES ENERGIES APPARAIT DANS LES EVENEMENTS FAIBLES, CE QUI IMPLIQUE UNE EVOLUTION DE LA FONCTION DE LUMINOSITE AVEC L'ENERGIE

Gamma-ray Bursts

Author : Cheng Ho
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.

Catalog of Cosmic Gamma-Ray Bursts from the KONUS Experiment Data

Author : E.P. Mazets
Publisher : Springer Science & Business Media
ISBN 13 : 9400979606
Total Pages : 145 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Catalog of Cosmic Gamma-Ray Bursts from the KONUS Experiment Data by : E.P. Mazets

Download or read book Catalog of Cosmic Gamma-Ray Bursts from the KONUS Experiment Data written by E.P. Mazets and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: continues to be extremely rewarding. Experiments on future missions, such as the two 1981 Veneras, Gamma Ray Observatory, and the International Solar Polar Mission, will undoubtedly provide new and unexpected discoveries, but the work of the Leningrad group is likely to remain an important contribution to the field for some time to come. c.E.S.R. KEVIN HURLEY Toulouse, France June 9, 1981 CATALOG OF COSMIC GAMMA-RAY BURSTS FROM THE KONUS EXPERIMENT DATA Parts I and II E. P. MAZETS, S. V. GOLENETSKII, V. N. IL'INSKII, V. N. PANOV, R. L. APTEKAR, YU. A. GUR'YAN, M. P. PROSKURA, 1. A. SOKOLOV, Z. Y A. SOKOLOV A, and T. V. KHARITONOV A A. F. Ioffe Physical-Technical Institute, U.S.S.R. Academy of Sciences, Leningrad, U.S.S.R. and A. V. DYATCHKOV and N. G. KHAVENSON Institute of Cosmic Research, U.S.S.R. Academy of Sciences, Moscow, U.S.S.R. (Received 2 July, 1980) Abstract. Data are presented on the temporal structure, fluxes, energy spectra and coordinates of the sources of gamma-ray bursts detected in the KONUS experiment on Venera 1 I and Venera 12 space probes in the period September 1978 to May 1979. The statistical distributions of gamma bursts in duration, intensity, and peak power, as well as the distribution of the burst sources over the celestial sphere presented are based on the updated KONUS information obtained until February 1980.

Proceedings of the Third Workshop on Science with the New Generation of High Energy Gamma-ray Experiments

Author : Alessandro De Angelis
Publisher : World Scientific
ISBN 13 : 9812773541
Total Pages : 230 pages
Book Rating : 4.8/5 (127 download)

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Book Synopsis Proceedings of the Third Workshop on Science with the New Generation of High Energy Gamma-ray Experiments by : Alessandro De Angelis

Download or read book Proceedings of the Third Workshop on Science with the New Generation of High Energy Gamma-ray Experiments written by Alessandro De Angelis and published by World Scientific. This book was released on 2006 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction -- I. Detectors for high-energy gamma-rays. First results from the MAGIC experiment / D. Bastieri for the MAGIC collaboration. H.E.S.S. / P. Vincent for the H.E.S.S. collaboration. CANGAROO / M. Mori for the CANGAROO-II, III Team. The status of VERITAS / M.K. Daniel on behalf of the VERITAS collaboration. Gamma ray bursts: recent results obtained by the SWIFT mission / G. Chinearini on behalf of the SWIFT team. Functional tests and performance characterization during the assembly phase of the modules of the AGILE silicon tracker / M. Basset [und weitere]. Status of GLAST, the gamma-ray large-area space telescope / L. Rochester on behalf of the GLAST team. Status of the ARGO-YBJ experiment / P. Camarri for the ARGO-YBJ collaboration. Gamma Air Watch (GAW) - an imaging atmospheric Cherenkov telescope large with large field of view / T. Mineo [und weitere] -- II. Topics in fundamental physics. Frontiers of high energy cosmic rays / M. Pimenta. Measurement of cosmological parameters / A. Balbi. The present and the future of cosmology with gamma ray bursts / G. Ghirlanda, G. Ghisellini. Supersymmetry breaking, extra dimensions and neutralino dark matter / A.M. Lionetto. Dark matter at [symbol]-rays / L. Pieri. Populations of subhalos in cold dark matter halos / E. Bisesi -- III. Multiwavelength observations. WEBT multifrequency support to space observations / C.M. Raiteri and M. Villata for the WEBT collaboration. REM - The Remote Observatory for GRB et al. / E. Molinari on behalf of the REM/ROSS team. Planck-LFI: operation of the scientific ground segment / F. Pasian [und weitere]. INTEGRAL three years later / L. Foschini, G. Di Cocco, G. Malaguti. XMM observations of Geminga, PSR B1055-52 and PSR B0656+14: phase resolved spectroscopy as a tool to investigate the X-[symbol] connection / P.A. Caraveo [und weitere] -- IV. Poster session. Software time-calibration of the ARGO-YBJ detector / A.K. Calabrese Melcarne for the ARGO-YBJ collaboration. Gamma-ray burst physics with GLAST / N. Omodei. Observations of blazars and EGRET sources with INTEGRAL / V. Vitale [und weitere]. A third level trigger programmable on FPGA for the gamma/hadron separation in a Cherenkov telescope using Pseudo-Zernike moments and the SVM classifier / M. Frailis [und weitere]. PulsarSpectrum: simulating gamma-ray pulsars for the GLAST mission / M. Razzano [und weitere]

Science With The New Generation Of High Energy Gamma-ray Experiments: The Variable Gamma-ray Sources: Their Identifications And Counterparts - Proceedings Of The Fourth Workshop

Download Science With The New Generation Of High Energy Gamma-ray Experiments: The Variable Gamma-ray Sources: Their Identifications And Counterparts - Proceedings Of The Fourth Workshop PDF Online Free

Author : Marco Maria Massai
Publisher : World Scientific
ISBN 13 : 9814474495
Total Pages : 251 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Science With The New Generation Of High Energy Gamma-ray Experiments: The Variable Gamma-ray Sources: Their Identifications And Counterparts - Proceedings Of The Fourth Workshop by : Marco Maria Massai

Download or read book Science With The New Generation Of High Energy Gamma-ray Experiments: The Variable Gamma-ray Sources: Their Identifications And Counterparts - Proceedings Of The Fourth Workshop written by Marco Maria Massai and published by World Scientific. This book was released on 2007-10-02 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research program in gamma-ray astronomy focuses on increasing our knowledge of the nature and origin of galactic and extragalactic gamma rays, and understanding high-energy processes in the Sun, celestial objects, interstellar medium, and extragalactic space.This book not only provides an overview of the latest research and future plans for space-borne and ground-based experiments dedicated to the observation of the gamma-ray sky, but also addresses the topic of variable gamma-ray sources from the perspective of their identification and counterparts at different wavelengths. It further gives an overview of the theory related to the most qualified emission processes that take place in these sources and of the nature of their variability.

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.

Gamma Ray Bursts

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722253998
Total Pages : 26 pages
Book Rating : 4.2/5 (539 download)

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Book Synopsis Gamma Ray Bursts by : National Aeronautics and Space Administration (NASA)

Download or read book Gamma Ray Bursts written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-03 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gamma ray bursts display a wide range of temporal and spectral characteristics, but typically last several seconds and emit most of their energy in a low energy, gamma ray region. The burst sources appear to be isotropically distributed on the sky. Several lines of evidence suggest magnetic neutron stars as sources for bursts. A variety of energy sources and emission mechanisms are proposed. Meegan, Charles A. Marshall Space Flight Center ...

Gamma-ray Bursts

Author : Charles A. Meegan
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (131 download)

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Book Synopsis Gamma-ray Bursts by : Charles A. Meegan

Download or read book Gamma-ray Bursts written by Charles A. Meegan and published by . This book was released on 1990 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

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.

Statistical Analysis of the Observable Data of Gamma-Ray Bursts

Author : Jakub Ripa
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783845412412
Total Pages : 140 pages
Book Rating : 4.4/5 (124 download)

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Book Synopsis Statistical Analysis of the Observable Data of Gamma-Ray Bursts by : Jakub Ripa

Download or read book Statistical Analysis of the Observable Data of Gamma-Ray Bursts written by Jakub Ripa and published by LAP Lambert Academic Publishing. This book was released on 2011-07 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gamma-ray bursts are still not fully understood events. However, their exploration could provide a useful tool for a better understanding of the early Universe because they belong to the most distant and violent objects that astronomers know. This book tries to bring more information about a so-called group of intermediate-duration bursts claimed by different authors employing different data samples. Firstly, duration and spectral hardness properties of bursts from the Reuven Ramaty High-Energy Solar Spectroscopic Imager are statistically analysed. The obtained results bring a suspicion that these intermediate bursts gather into a separate group. Secondly, these bursts are investigated in more detail with respect to their spectral lags, peak count rates, redshifts, supernova observations, and so forth. Thirdly, long-duration bursts with known redshifts and with derived pseudo-redshifts detected by The Burst and Transient Source Experiment, Swift and Fermi bursts with known redshifts, are used to study the cosmological effects on the observed flux and fluence distributions.

Spectral Properties of Gamma-ray Bursts Observed by the Burst and Transient Source Experiment

Author : Lyle A. Ford
Publisher :
ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Spectral Properties of Gamma-ray Bursts Observed by the Burst and Transient Source Experiment by : Lyle A. Ford

Download or read book Spectral Properties of Gamma-ray Bursts Observed by the Burst and Transient Source Experiment written by Lyle A. Ford and published by . This book was released on 1996 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Gamma-Ray Bursts

Author : R. Marc Kippen
Publisher : American Institute of Physics
ISBN 13 :
Total Pages : 936 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Gamma-Ray Bursts by : R. Marc Kippen

Download or read book Gamma-Ray Bursts written by R. Marc Kippen and published by American Institute of Physics. This book was released on 2000-10-06 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reflects the current state of the growing field of gamma-ray burst research and the remarkable progress brought about by recent multiwavelength observations. A full range of topics related to modern burst research is covered, including new observational results, ongoing archival analyses, theoretical modeling, and current/future instrumentation.

PASCAL.

Author :
Publisher :
ISBN 13 :
Total Pages : 422 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis PASCAL. by :

Download or read book PASCAL. written by and published by . This book was released on 1993 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Optical Observations of Gamma-ray Burst Afterglows

Author : Kevin J. Lindsay
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.:/5 (565 download)

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Book Synopsis Optical Observations of Gamma-ray Burst Afterglows by : Kevin J. Lindsay

Download or read book Optical Observations of Gamma-ray Burst Afterglows written by Kevin J. Lindsay and published by . This book was released on 2003 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Gamma Ray Burst Correlations

Author : Maria Dainotti
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 Bursts: 30 Years of Discovery

Author : E.E. Fenimore
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.