The Nature Of Unidentified Galactic High Energy Gamma Ray Sources

Author : Alberto Carramiñana,Olaf Reimer,David J. Thompson
Publisher : Springer Science & Business Media
Page : 358 pages
File Size : 45,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401010078

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The Nature of Unidentified Galactic High-Energy Gamma-Ray Sources by Alberto Carramiñana,Olaf Reimer,David J. Thompson Pdf

The Energetic Gamma-Ray Experiment Telescope (EGRET) instru ment on the Compton Gamma-Ray Observatory left as a legacy its Third Catalog of High Energy Gamma-Ray Sources, whose detections include a large number of blazars, some pulsars, the Large Magellanic Cloud and a solar flare. Most of the newly discovered objects - a majority of the catalog -are unidentified sources, with a clearly predominant Galactic population. Are all these radio-quiet pulsars, like Geminga, or is there a novel type of celestial object, awaiting identification? In spite of the limited angular resolution provided by EGRET and COMPTEL, there is still much to learn about unidentified ,-ray sources: correlation studies, multiwavelength observations and theoretical work can provide valuable clues, specially if these efforts are carried out in a coordinated manner. The aim of this workshop, held from October 9 to 11, 2000, at the Instituto N acional de Astrofisica, Optica y Electronica, at Tonantzintla, Mexico, was to gather experts on the subject, including observational as tronomers specialized in other regions of the electromagnetic spectrum, in an effort to address the question of the Nature of Galactic high-energy gamma-ray sources, both from the theoretical and observational perspec tive, and elaborate schemes for future identification studies which can make use of existing and forthcoming facilities.

Author : K.S. Cheng,Gustavo E. Romero
Publisher : Springer Science & Business Media
Page : 439 pages
File Size : 40,5 Mb
Release : 2005-12-05
Category : Science
ISBN : 9781402038815

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Multiwavelength Approach to Unidentified Gamma-Ray Sources by K.S. Cheng,Gustavo E. Romero Pdf

Nearly one half of the point-like gamma-ray sources detected by EGRET instrument of the late Compton satellite are still defeating our attempts at identifying them. To establish the origin and nature of these enigmatic sources has become a major problem of current high-energy astrophysics. The second workshop on Multiwavelength Approach to Unidentified Gamma-ray Sources intends to shed new and fresh light on the problem of the nature of the unidentified gamma-ray sources. The proceedings contain 46 contributed papers in this subject, which cover theoretical models on gamma-ray sources as well as the best multiwavelength strategies for the identification of the promising candidates. The topics of this conference also include energetic phenomena occurring both in galactic and extragalactic scenarios, phenomena that might lead to the appearance of what we have called high-energy unidentified sources. The book will be of interest for all active researchers in the high-energy astrophysics and related research areas as well as for scientists and graduate students interested in understanding the recent progress in high-energy astrophysics.

Author : Josep M. Paredes,Olaf Reimer,Diego F. Torres
Publisher : Springer Science & Business Media
Page : 496 pages
File Size : 50,5 Mb
Release : 2007-11-12
Category : Science
ISBN : 9781402061172

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The Multi-Messenger Approach to High-Energy Gamma-Ray Sources by Josep M. Paredes,Olaf Reimer,Diego F. Torres Pdf

This book provides a theoretical and observational overview of the state of the art of gamma-ray astrophysics, and their impact and connection with the physics of cosmic rays and neutrinos. With the aim of shedding new and fresh light on the problem of the nature of the gamma-ray sources, particularly those yet unidentified, this book summarizes contributions to a workshop that continues today.

Author : Josep M. Paredes,Olaf Reimer,Diego F. Torres
Publisher : Springer
Page : 544 pages
File Size : 49,8 Mb
Release : 2009-09-03
Category : Science
ISBN : 9048113660

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The Multi-Messenger Approach to High-Energy Gamma-Ray Sources by Josep M. Paredes,Olaf Reimer,Diego F. Torres Pdf

This book provides a theoretical and observational overview of the state of the art of gamma-ray astrophysics, and their impact and connection with the physics of cosmic rays and neutrinos. With the aim of shedding new and fresh light on the problem of the nature of the gamma-ray sources, particularly those yet unidentified, this book summarizes contributions to a workshop that continues today.

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 53,8 Mb
Release : 2024-05-19
Category : Electronic
ISBN : 9789814474498

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Science with the New Generation of High Energy Gamma-Ray Experiments by Anonim Pdf

Author : T.C. Weekes
Publisher : CRC Press
Page : 221 pages
File Size : 55,6 Mb
Release : 2003-04-08
Category : Science
ISBN : 9781420033199

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Very High Energy Gamma-Ray Astronomy by T.C. Weekes Pdf

High energy gamma-ray photons are the prime probes of the relativistic or high-energy universe, populated by black holes, neutron stars, supernovae, quasars, and matter-antimatter annihilations. Through studying the gamma-ray sky, astrophysicists are able to better understand the formation and behavior of these exotic and energetic bodies. Very High Energy Gamma-Ray Astronomy summarizes the status of gamma-ray astronomy at energies between 30MeV and 50TeV at a critical point in the development of the discipline: the hiatus between the demise of the EGRET telescope and the launch of the next generation of space telescopes. Starting with an overview of the astrophysics of the bodies that generate high energy gamma rays, it proceeds to discuss the latest developments in observational techniques and equipment. By presenting the techniques, observations, and theories of this expanding frontier, Very High Energy Gamma-Ray Astronomy aids experimentalists and theoreticians in detecting and explaining gamma rays of the highest energies.

Author : K.S. Cheng,Gustavo E. Romero
Publisher : Springer Science & Business Media
Page : 412 pages
File Size : 43,6 Mb
Release : 2012-11-03
Category : Science
ISBN : 9781402022562

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Cosmic Gamma-Ray Sources by K.S. Cheng,Gustavo E. Romero Pdf

Gamma-ray astronomy has undergone an enormous progress in the last 15 years. The success of satellite experiments like NASA's Comp ton Gamma-Ray Observatory and ESA's INTEGRAL mission, as well as of ground-based instruments have open new views into the high-energy Universe. Different classes of cosmic gamma-ray sources have been now detected at different energies, in addition to young radio pulsars and gamma-ray bursts, the classical ones. The new sources include radio quiet pulsars, microquasars, supernova remnants, starburst galaxies, ra dio galaxies, flat-spectrum radio quasars, and BL Lacertae objects. A large number of unidentified sources strongly suggests that this brief enumeration is far from complete. Gamma-ray bursts are now estab lished as extragalactic sources with tremendous energy output. There is accumulating evidence supporting the idea that massive stars and star forming regions can accelerate charged particles up to relativistic ener gies making them gamma-ray sources. Gamma-ray astronomy has also proved to be a powerful tool for cosmology imposing constraints to the background photon fields that can absorb the gamma-ray flux from dis tant sources. All this has profound implications for our current ideas about how particles are accelerated and transported in both the local and distant U niverse. The evolution of our knowledge on the gamma-ray sky has been so fast that is not easy for the non-specialist scientist and the graduate student to be aware of the full potential of this field or to grasp the fundamentals of a given topic in order to attempt some original contribution.

Author : Alfredo Macias,Francisco Uribe,Enrique Diaz
Publisher : Springer Science & Business Media
Page : 226 pages
File Size : 51,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461501992

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Developments in Mathematical and Experimental Physics by Alfredo Macias,Francisco Uribe,Enrique Diaz Pdf

The FIRST MEXICAN MEETING ON MATHEMATICAL AND EXPERI MENTAL PHYSICS was held at EL COLEGIO N ACIONAL in Mexico Cit y, Mexico, from September 10 to 14, 2001. This event consisted of the LEOPOLDO GARciA-COLiN SCHERER Medal Lecture, delivered by Prof. Nicholas G. van Kampen, a series of plenary talks by Leopoldo Garcia-Colin, Giinter Nimtz, Luis F. Rodriguez, Ruoon Barrera, and Donald Saari, and of three parallel symposia, namely, Cosmology and Gravitation, Statistical Physics and Beyond, and Hydrodynamics and Dynamical Systems. The response from the Physics community was enthusiastic, with over 200 participants and around 80 speakers, from allover the world: USA, Canada, Mexico, Germany, France, Holland, United Kingdom, Switzerland, Spain, and Hungary. The main aim of the conference is to provide a scenario to Mexican researchers on the topics of Mathematical and Experimental Physics in order to keep them in contact with work going on in other parts of the world and at the same time to motivate and support the young and mid career researchers from our country. To achieve this goal, we decided to the most distinguished experts in the subjects of the invite as lecturers conference and to give the opportunity to young scientist to communi cate the results of their work. The plan is to celebrate this international endeavor every three years.

Author : G.E. Morfill,R. Buccheri
Publisher : Springer Science & Business Media
Page : 338 pages
File Size : 46,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400972087

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Galactic Astrophysics and Gamma-Ray Astronomy by G.E. Morfill,R. Buccheri Pdf

This book contains the invited and contributed lectures presented at a meeting organised in the context of the XVIII general assembly ofthe IAU, held in Patras, August 19, 1982. Roughly one hundred scientists attended this meeting, the discussions were livel- sometimes heated - and the original time span allocated to the meeting was as a result, comfortably exceeded by about 50 % . The aim of this meeting was to determine the role of galactic gamma-ray astronomy within the general concept of galactic astrophysics. The timing, at the end of the COS-B mission, was regarded as opportune, because it gives interested astrophysicists the possibility for interdisciplinary studies using the existing gamma-ray data base (e.g. comparison with infrared, radio, X-ray, etc. astronomies), as well as for theoretical studies. The next generation of gamma-ray detectors will probably not be in operation for another 5 to 10 years, and therefore it is hoped that the proceeding of this meeting can be used (in the intermediate time) as a basis for further studies, as a stimulation for more theoretical work and as an important contribution for defining the aims and operation of future gamma-ray missions. The interrelationship with other branches of astronomy, the astrophysical implications and the study of relevant physical processes using available measurements in the near-Earth environment were important results of the meeting. Many persons contributed to the success of the meeting, in particular all those who either presented a contribution and/or took part in the discussions.

Author : Willem Hermsen
Publisher : Unknown
Page : 326 pages
File Size : 42,5 Mb
Release : 2004
Category : Neutron stars
ISBN : STANFORD:36105113968577

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High-energy Studies of Supernova Remnants and Neutron Stars by Willem Hermsen Pdf

Author : Maurice Mandel Shapiro,Todor Stanev,J. P. Wefel
Publisher : Springer Science & Business Media
Page : 400 pages
File Size : 54,7 Mb
Release : 2001
Category : Science
ISBN : 1402001738

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Astrophysical Sources of High Energy Particles and Radiation by Maurice Mandel Shapiro,Todor Stanev,J. P. Wefel Pdf

A wide range of topics is covered in this book, ranging from supernovae to active galactic nuclei and cosmic gamma rays to neutrinos and dark matter.

Author : Anonim
Publisher : Unknown
Page : 46 pages
File Size : 51,8 Mb
Release : 1991
Category : Gamma ray astronomy
ISBN : UIUC:30112104415226

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The Gamma-Ray Observatory by Anonim Pdf

Author : F A Aharonian
Publisher : World Scientific
Page : 512 pages
File Size : 55,9 Mb
Release : 2004-07-19
Category : Science
ISBN : 9789814491396

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Very High Energy Cosmic Gamma Radiation by F A Aharonian Pdf

Gamma ray astronomy, the branch of high energy astrophysics that studies the sky in energetic γ-ray photons, is destined to play a crucial role in the exploration of nonthermal phenomena in the Universe in their most extreme and violent forms. The great potential of this discipline offers impressive coverage of many “hot topics” of modern astrophysics and cosmology, such as the origin of galactic and extragalactic cosmic rays, particle acceleration and radiation processes under extreme astrophysical conditions, and the search for dark matter. The recent observational results and exciting theoretical predictions provide a strong rationale for a deep study of cosmic radiation with forthcoming satellite-borne and ground-based detectors in the so-called very high energy domain of the electromagnetic spectrum above 1010 eV. This invaluable book presents the motivations and highlights the principal objectives of the field, as well as demonstrates its intrinsic links to other branches of high energy astrophysics. Preference is given to three topical areas: (i) origin of cosmic rays; (ii) physics and astrophysics of relativistic jets; (iii) observational gamma ray cosmology. Also, an essential part of the book is devoted to the discussion of the principal mechanisms of production and absorption of energetic γ-rays in different astrophysical environments, as well as to the description of the detection methods of high energy cosmic γ-radiation. Contents:Status of the FieldGamma Ray Production and Absorption MechanismsGamma Rays and Origin of Galactic Cosmic RaysGamma Ray Visibility of Supernova RemnantsPulsars, Pulsar Winds, PlerionsGamma Rays Expected from MicroquasarsLarge Scale Jets of Radio Galaxies and QuasarsNonthermal Phenomena in Clusters of GalaxiesTeV Blazars and Cosmic Background RadiationHigh Energy Gamma Rays — Carriers of Unique Cosmological Information Readership: Astrophysicists, cosmic ray physicists, cosmologists and high energy physicists. Keywords:Reviews:“The author has been an active player in the pioneering experiments that opened the ‘last electromagnetic window’ at photon energies beyond GeV, or wavelengths smaller than 10–13 cm. This is a timely in-depth review of gamma ray astronomy, a field exploding with new instrumentation: space-borne detectors aiming for astronomy with thousands of sources and ground-based detectors hunting for the origin of the cosmic rays, still enigmatic one century after their discovery.”Francis Halzen University of Wisconsin “‘Very high-energy gamma-ray astronomy’ is now beginning to play a crucial role in understanding the high-energy phenomena in the Universe. Flix Ahranonian clearly describes the implication of this new developing field relating to Cosmic-ray Physics, X-ray and low energy gamma-ray astronomy, Potential Extragalactic sources and Cosmologies and dark matter … His writing covers what is known, what is to be explored in future, and also speculating on some new exciting unknown phenomena. He is one of the pioneers and a leading scientist in this field, and this book is timely and valuable for the students and researchers in this field which developed so quickly in recent years together with the scientists who have interest and wish to understand and research the high-energy phenomena in the Universe.”Emeritus Professor Jun Nishimura The University of Tokyo, and Institute of Space and Astronuatical Science “In the entire text Aharonian attaches importance to analytic descriptions. He outlined, discusses and quotes numerous model calculations as well as an abundance of experimental data. The Bibliography is very extensive. This is a recommendable book.”Physik Journal

Author : Ka Lok Cheng,Gustavo E. Romero
Publisher : Springer
Page : 408 pages
File Size : 48,6 Mb
Release : 2014-10-09
Category : Science
ISBN : 9401570108

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Cosmic Gamma-Ray Sources by Ka Lok Cheng,Gustavo E. Romero Pdf

Gamma-ray astronomy has undergone an enormous progress in the last 15 years. The success of satellite experiments like NASA's Comp ton Gamma-Ray Observatory and ESA's INTEGRAL mission, as well as of ground-based instruments have open new views into the high-energy Universe. Different classes of cosmic gamma-ray sources have been now detected at different energies, in addition to young radio pulsars and gamma-ray bursts, the classical ones. The new sources include radio quiet pulsars, microquasars, supernova remnants, starburst galaxies, ra dio galaxies, flat-spectrum radio quasars, and BL Lacertae objects. A large number of unidentified sources strongly suggests that this brief enumeration is far from complete. Gamma-ray bursts are now estab lished as extragalactic sources with tremendous energy output. There is accumulating evidence supporting the idea that massive stars and star forming regions can accelerate charged particles up to relativistic ener gies making them gamma-ray sources. Gamma-ray astronomy has also proved to be a powerful tool for cosmology imposing constraints to the background photon fields that can absorb the gamma-ray flux from dis tant sources. All this has profound implications for our current ideas about how particles are accelerated and transported in both the local and distant U niverse. The evolution of our knowledge on the gamma-ray sky has been so fast that is not easy for the non-specialist scientist and the graduate student to be aware of the full potential of this field or to grasp the fundamentals of a given topic in order to attempt some original contribution.

Author : Anonim
Publisher : Unknown
Page : 496 pages
File Size : 52,7 Mb
Release : 2003
Category : Physics
ISBN : CHI:62495894

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Physics, Uspekhi by Anonim Pdf