Search For Patterns By Combining Cosmic Ray Energy And Arrival Directions At The Pierre Auger Observatory

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Search for Patterns by Combining Cosmic-ray Energy and Arrival Directions at the Pierre Auger Observatory

Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (925 download)

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Book Synopsis Search for Patterns by Combining Cosmic-ray Energy and Arrival Directions at the Pierre Auger Observatory by :

Download or read book Search for Patterns by Combining Cosmic-ray Energy and Arrival Directions at the Pierre Auger Observatory written by and published by . This book was released on 2015 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy-dependent patterns in the arrival directions of cosmic rays are searched for using data of the Pierre Auger Observatory. We investigate local regions around the highest-energy cosmic rays with $E \ge 6 \times 10^$ eV by analyzing cosmic rays with energies above $E \ge 5 \times 10^$ eV arriving within an angular separation of approximately 15$^{\circ }$ . We characterize the energy distributions inside these regions by two independent methods, one searching for angular dependence of energy-energy correlations and one searching for collimation of energy along the local system of principal axes of the energy distribution. No significant patterns are found with this analysis. The comparison of these measurements with astrophysical scenarios can therefore be used to obtain constraints on related model parameters such as strength of cosmic-ray deflection and density of point sources.

Cosmic Ray Physics

Author : Veronica Bindi
Publisher : CRC Press
ISBN 13 : 1000850838
Total Pages : 325 pages
Book Rating : 4.0/5 (8 download)

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Book Synopsis Cosmic Ray Physics by : Veronica Bindi

Download or read book Cosmic Ray Physics written by Veronica Bindi and published by CRC Press. This book was released on 2023-03-23 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key features: Complete introductory overview of cosmic ray physics Covers the origins, acceleration, transport mechanisms and detection of these particles Mathematical and technical detail is kept separate from the main text

Pierre Auger Results

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (94 download)

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Book Synopsis Pierre Auger Results by :

Download or read book Pierre Auger Results written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Using data collected at the Pierre Auger Observatory during the past 3.7 years, we demonstrate that there is a correlation between the arrival directions of cosmic rays with energy above 6 [1] 1019 eV and the positions of active galactic nuclei (AGN) lying within 75 Mpc. We reject the hypothesis of an isotropic distribution of these cosmic rays at over 99% confidence level from a prescribed a priori test. The correlation we observe is compatible with the hypothesis that the highest energy particles originate from relatively nearby extragalactic sources whose fluxes have therefore not been significantly reduced by interaction with the cosmic background radiation. AGN or objects having a similar spatial distribution are possible sources.

Stem Cell Therapy for Vascular Diseases

Author : Tulio Pinho Navarro
Publisher : Springer Nature
ISBN 13 : 3030569543
Total Pages : 425 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Stem Cell Therapy for Vascular Diseases by : Tulio Pinho Navarro

Download or read book Stem Cell Therapy for Vascular Diseases written by Tulio Pinho Navarro and published by Springer Nature. This book was released on 2020-11-05 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vascular diseases are the leading cause of death worldwide. Distinguished clinical and surgical approaches have attempted to overcome its morbidity and mortality; still 17.9 million people die every year due to vascular affections. Stem cell therapy has emerged as a promising therapeutic strategy. Stem cells synthesize and secrete cytokines that promote cell recruitment, immunomodulation, extracellular matrix remodeling, angiogenesis, and neuroregeneration, all of which promote regeneration. Besides that, stem cells are also capable of differentiating in various cell types, being employed in tissue engineering. Preclinical and clinical investigations have reported efficacy of stem cell therapy for various vascular diseases. Even though results are encouraging, the studies demonstrate variation in stem cell type and origin, route and protocol for administration, and concomitant use of other treatment strategies, impairing easy interpretation of results and clinical application. The purpose of this book is to compile and comprise the current state of the evidence regarding stem cell therapy for each vascular disease, elucidating possible clinical applications. More than an objective guide for readers on the use of this novel treatment strategy, this publication will advocate for stem cell therapy use and development and will be of significant interest to physicians in a wide range of disciplines as well as researchers.

Large Area Networked Detectors For Particle Astrophysics

Author : Pierre Sokolsky
Publisher : World Scientific
ISBN 13 : 1800612621
Total Pages : 323 pages
Book Rating : 4.8/5 (6 download)

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Book Synopsis Large Area Networked Detectors For Particle Astrophysics by : Pierre Sokolsky

Download or read book Large Area Networked Detectors For Particle Astrophysics written by Pierre Sokolsky and published by World Scientific. This book was released on 2022-09-09 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The universe is pervaded by particles with extreme energies, millions of times greater than we can produce on Earth. They have been a mystery for over a century. Now, current and future experiments in particle astrophysics are leading us to answers to the most fundamental questions about them. How does nature accelerate the highest energy particles in the universe? Do new interactions between them occur at such extreme energies? Are there unknown aspects of spacetime that can be uncovered by studying these particles?This book brings together three fields within 'extreme astronomy': ultra-high-energy cosmic ray physics, neutrino astronomy, and gamma-ray astronomy, and discusses how each can help answer these questions. Each field is presented with a theoretical introduction that clearly elucidates the key questions scientists face. This is followed by chapters that discuss the current set of experiments — how they work and their discoveries. Finally, new techniques and approaches are discussed to solve the mysteries uncovered by the current experiments.

Application of Machine Learning Techniques for Cosmic Ray Event Classification and Implementation of a Real-time Ultra-high Energy Photon Search with the Surface Detector of the Pierre Auger Observatory

Download Application of Machine Learning Techniques for Cosmic Ray Event Classification and Implementation of a Real-time Ultra-high Energy Photon Search with the Surface Detector of the Pierre Auger Observatory PDF Online Free

Author : Lukas Zehrer
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (128 download)

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Book Synopsis Application of Machine Learning Techniques for Cosmic Ray Event Classification and Implementation of a Real-time Ultra-high Energy Photon Search with the Surface Detector of the Pierre Auger Observatory by : Lukas Zehrer

Download or read book Application of Machine Learning Techniques for Cosmic Ray Event Classification and Implementation of a Real-time Ultra-high Energy Photon Search with the Surface Detector of the Pierre Auger Observatory written by Lukas Zehrer and published by . This book was released on 2021 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Particle Detection and Imaging

Author : Claus Grupen
Publisher : Springer Science & Business Media
ISBN 13 : 3642132715
Total Pages : 1251 pages
Book Rating : 4.6/5 (421 download)

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Book Synopsis Handbook of Particle Detection and Imaging by : Claus Grupen

Download or read book Handbook of Particle Detection and Imaging written by Claus Grupen and published by Springer Science & Business Media. This book was released on 2012-01-08 with total page 1251 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook centers on detection techniques in the field of particle physics, medical imaging and related subjects. It is structured into three parts. The first one is dealing with basic ideas of particle detectors, followed by applications of these devices in high energy physics and other fields. In the last part the large field of medical imaging using similar detection techniques is described. The different chapters of the book are written by world experts in their field. Clear instructions on the detection techniques and principles in terms of relevant operation parameters for scientists and graduate students are given.Detailed tables and diagrams will make this a very useful handbook for the application of these techniques in many different fields like physics, medicine, biology and other areas of natural science.

A Recommended Procedure for Estimating the Cosmic-Ray Spectral Parameter of a Simple Power Law With Applications to Detector Design

Author : L. W. Howell
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Recommended Procedure for Estimating the Cosmic-Ray Spectral Parameter of a Simple Power Law With Applications to Detector Design by : L. W. Howell

Download or read book A Recommended Procedure for Estimating the Cosmic-Ray Spectral Parameter of a Simple Power Law With Applications to Detector Design written by L. W. Howell and published by . This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Automatic Speech Recognition

Author : Dong Yu
Publisher : Springer
ISBN 13 : 1447157796
Total Pages : 329 pages
Book Rating : 4.4/5 (471 download)

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Book Synopsis Automatic Speech Recognition by : Dong Yu

Download or read book Automatic Speech Recognition written by Dong Yu and published by Springer. This book was released on 2014-11-11 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the recent advancement in the field of automatic speech recognition with a focus on deep learning models including deep neural networks and many of their variants. This is the first automatic speech recognition book dedicated to the deep learning approach. In addition to the rigorous mathematical treatment of the subject, the book also presents insights and theoretical foundation of a series of highly successful deep learning models.

High Energy Cosmic Rays

Author : Todor Stanev
Publisher : Springer Science & Business Media
ISBN 13 : 3540851488
Total Pages : 334 pages
Book Rating : 4.5/5 (48 download)

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Book Synopsis High Energy Cosmic Rays by : Todor Stanev

Download or read book High Energy Cosmic Rays written by Todor Stanev and published by Springer Science & Business Media. This book was released on 2010-03-10 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers an accessible text and reference (a cosmic-ray manual) for graduate students entering the field and high-energy astrophysicists will find this an accessible cosmic-ray manual Easy to read for the general astronomer, the first part describes the standard model of cosmic rays based on our understanding of modern particle physics. Presents the acceleration scenario in some detail in supernovae explosions as well as in the passage of cosmic rays through the Galaxy. Compares experimental data in the atmosphere as well as underground are compared with theoretical models

Planets, Stars and Stellar Systems

Author : Gerard Gilmore
Publisher : Springer
ISBN 13 : 9789400756113
Total Pages : 0 pages
Book Rating : 4.7/5 (561 download)

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Book Synopsis Planets, Stars and Stellar Systems by : Gerard Gilmore

Download or read book Planets, Stars and Stellar Systems written by Gerard Gilmore and published by Springer. This book was released on 2013-02-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is volume 5 of Planets, Stars and Stellar Systems, a six-volume compendium of modern astronomical research, covering subjects of key interest to the main fields of contemporary astronomy. This volume on “Galactic Structure and Stellar Populations”, edited by Gerard F. Gilmore, presents accessible review chapters on Stellar Populations, Chemical Abundances as Population Tracers, Metal-Poor Stars and the Chemical Enrichment of the Universe, The Stellar and Sub-Stellar Initial Mass Function of Simple and Composite Populations, The Galactic Nucleus, The Galactic Bulge, Open Clusters and Their Role in the Galaxy, Star Counts and the Nature of Galactic Thick Disk, The Infrared Galaxy, Interstellar PAHs and Dust, Galactic Neutral Hydrogen, High-Velocity Clouds, Magnetic Fields in Galaxies, Astrophysics of Galactic Charged Cosmic Rays, Gamma-Ray Emission of Supernova Remnants and the Origin of Galactic Cosmic Rays, Galactic Distance Scales, Globular Cluster Dynamical Evolution, Dynamics of Disks and Warps, Mass Distribution and Rotation Curve in the Galaxy, Dark Matter in the Galactic Dwarf Spheroidal Satellites, and History of Dark Matter in Galaxies. All chapters of the handbook were written by practicing professionals. They include sufficient background material and references to the current literature to allow readers to learn enough about a specialty within astronomy, astrophysics and cosmology to get started on their own practical research projects. In the spirit of the series Stars and Stellar Systems published by Chicago University Press in the 1960s and 1970s, each chapter of Planets, Stars and Stellar Systems can stand on its own as a fundamental review of its respective sub-discipline, and each volume can be used as a textbook or recommended reference work for advanced undergraduate or postgraduate courses. Advanced students and professional astronomers in their roles as both lecturers and researchers will welcome Planets, Stars and Stellar Systems as a comprehensive and pedagogical reference work on astronomy, astrophysics and cosmology.

Cosmic Rays at Earth

Author : P.K.F. Grieder
Publisher : Elsevier
ISBN 13 : 0080530052
Total Pages : 1117 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Cosmic Rays at Earth by : P.K.F. Grieder

Download or read book Cosmic Rays at Earth written by P.K.F. Grieder and published by Elsevier. This book was released on 2001-07-27 with total page 1117 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1912 Victor Franz Hess made the revolutionary discovery that ionizing radiation is incident upon the Earth from outer space. He showed with ground-based and balloon-borne detectors that the intensity of the radiation did not change significantly between day and night. Consequently, the sun could not be regarded as the sources of this radiation and the question of its origin remained unanswered. Today, almost one hundred years later the question of the origin of the cosmic radiation still remains a mystery.Hess' discovery has given an enormous impetus to large areas of science, in particular to physics, and has played a major role in the formation of our current understanding of universal evolution. For example, the development of new fields of research such as elementary particle physics, modern astrophysics and cosmology are direct consequences of this discovery. Over the years the field of cosmic ray research has evolved in various directions: Firstly, the field of particle physics that was initiated by the discovery of many so-called elementary particles in the cosmic radiation. There is a strong trend from the accelerator physics community to reenter the field of cosmic ray physics, now under the name of astroparticle physics. Secondly, an important branch of cosmic ray physics that has rapidly evolved in conjunction with space exploration concerns the low energy portion of the cosmic ray spectrum. Thirdly, the branch of research that is concerned with the origin, acceleration and propagation of the cosmic radiation represents a great challenge for astrophysics, astronomy and cosmology. Presently very popular fields of research have rapidly evolved, such as high-energy gamma ray and neutrino astronomy. In addition, high-energy neutrino astronomy may soon initiate as a likely spin-off neutrino tomography of the Earth and thus open a unique new branch of geophysical research of the interior of the Earth. Finally, of considerable interest are the biological and medical aspects of the cosmic radiation because of it ionizing character and the inevitable irradiation to which we are exposed. This book is a reference manual for researchers and students of cosmic ray physics and associated fields and phenomena. It is not intended to be a tutorial. However, the book contains an adequate amount of background materials that its content should be useful to a broad community of scientists and professionals. The present book contains chiefly a data collection in compact form that covers the cosmic radiation in the vicinity of the Earth, in the Earth's atmosphere, at sea level and underground. Included are predominantly experimental but also theoretical data. In addition the book contains related data, definitions and important relations. The aim of this book is to offer the reader in a single volume a readily available comprehensive set of data that will save him the need of frequent time consuming literature searches.

300 Gev Observations of Unidentified Egret Sources. a Search for TeV Counterparts to Batse Gamma-Ray Bursts

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722126896
Total Pages : 72 pages
Book Rating : 4.1/5 (268 download)

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Book Synopsis 300 Gev Observations of Unidentified Egret Sources. a Search for TeV Counterparts to Batse Gamma-Ray Bursts by : National Aeronautics and Space Administration (NASA)

Download or read book 300 Gev Observations of Unidentified Egret Sources. a Search for TeV Counterparts to Batse Gamma-Ray Bursts written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are few things more intriguing in high energy astrophysics than the study of the highest energy particles in the universe. Where and how these particles achieve their extreme energies is of interest not only to the astrophysicist but also to the particle physicist. At GeV and TeV energies the problem is manageable since the physics is known and the acceleration processes feasible. But the energy spectrum extends to 10(exp 20)Ev and there the problem of their origin is both more difficult and interesting; in fact at these high energies we do not even know what the particles are. The study of the origin and distribution of relativistic particles in the universe has been a challenge for more than 80 years but it is only in recent years that the technology has become available to really address the question. Although something can be learned from studies of composition and energy spectrum, the origins (and thence the acceleration mechanisms) can only come from the direct study of the neutral particle component (in this respect the highest energy particles are effectively neutral since they are virtually undeflected). The feasible channels of investigation are therefore the study of the arrival directions of: (1) TeV photons (covered by the following U.S. experiments: STACEE, Whipple/VERITAS, MILAGRO and, to some extent, by EGRET/GLAST); (2) neutrinos of TeV energy and above (AMANDA/KM3); (3) the highest energy cosmic rays (HiRes, Auger). While these studies represent a form of astronomy they are the astronomy of the extraordinary universe, the universe populated by the most dynamic and physically exciting objects, the universe of the high energy astrophysicist whose cosmic laboratories represent conditions beyond anything that can be duplicated in a terrestrial laboratory. This extraordinary astronomy may say little about the normal evolution of stars and galaxies but it opens windows into cosmic particle acceleration where new and strange physical processes take ...

Magnetic Fields in Diffuse Media

Author : Alexander Lazarian
Publisher : Springer
ISBN 13 : 3662446251
Total Pages : 627 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis Magnetic Fields in Diffuse Media by : Alexander Lazarian

Download or read book Magnetic Fields in Diffuse Media written by Alexander Lazarian and published by Springer. This book was released on 2014-11-14 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the current knowledge of magnetic fields in diffuse astrophysical media. Starting with an overview of 21st century instrumentation to observe astrophysical magnetic fields, the chapters cover observational techniques, origin of magnetic fields, magnetic turbulence, basic processes in magnetized fluids, the role of magnetic fields for cosmic rays, in the interstellar medium and for star formation. Written by a group of leading experts the book represents an excellent overview of the field. Nonspecialists will find sufficient background to enter the field and be able to appreciate the state of the art.

Particle Physics Reference Library

Author : Stephen Myers
Publisher : Springer Nature
ISBN 13 : 303034245X
Total Pages : 867 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Particle Physics Reference Library by : Stephen Myers

Download or read book Particle Physics Reference Library written by Stephen Myers and published by Springer Nature. This book was released on 2020-01-01 with total page 867 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third open access volume of the handbook series deals with accelerator physics, design, technology and operations, as well as with beam optics, dynamics and diagnostics. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A,B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access.

High Energy Astrophysics

Author : Malcolm S. Longair
Publisher : Cambridge University Press
ISBN 13 : 1139494546
Total Pages : 885 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis High Energy Astrophysics by : Malcolm S. Longair

Download or read book High Energy Astrophysics written by Malcolm S. Longair and published by Cambridge University Press. This book was released on 2011-02-03 with total page 885 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing students with an in-depth account of the astrophysics of high energy phenomena in the Universe, the third edition of this well-established textbook is ideal for advanced undergraduate and beginning graduate courses in high energy astrophysics. Building on the concepts and techniques taught in standard undergraduate courses, this textbook provides the astronomical and astrophysical background for students to explore more advanced topics. Special emphasis is given to the underlying physical principles of high energy astrophysics, helping students understand the essential physics. The third edition has been completely rewritten, consolidating the previous editions into one volume. It covers the most recent discoveries in areas such as gamma-ray bursts, ultra-high energy cosmic rays and ultra-high energy gamma rays. The topics have been rearranged and streamlined to make them more applicable to a wide range of different astrophysical problems.

Philosophy of Nature

Author : Paul K. Feyerabend
Publisher : John Wiley & Sons
ISBN 13 : 0745694764
Total Pages : 288 pages
Book Rating : 4.7/5 (456 download)

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Book Synopsis Philosophy of Nature by : Paul K. Feyerabend

Download or read book Philosophy of Nature written by Paul K. Feyerabend and published by John Wiley & Sons. This book was released on 2016-09-26 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Philosopher, physicist, and anarchist Paul Feyerabend was one of the most unconventional scholars of his time. His book Against Method has become a modern classic. Yet it is not well known that Feyerabend spent many years working on a philosophy of nature that was intended to comprise three volumes covering the period from the earliest traces of stone age cave paintings to the atomic physics of the 20th century – a project that, as he conveyed in a letter to Imre Lakatos, almost drove him nuts: “Damn the ,Naturphilosophie.” The book’s manuscript was long believed to have been lost. Recently, however, a typescript constituting the first volume of the project was unexpectedly discovered at the University of Konstanz. In this volume Feyerabend explores the significance of myths for the early period of natural philosophy, as well as the transition from Homer’s “aggregate universe” to Parmenides’ uniform ontology. He focuses on the rise of rationalism in Greek antiquity, which he considers a disastrous development, and the associated separation of man from nature. Thus Feyerabend explores the prehistory of science in his familiar polemical and extraordinarily learned manner. The volume contains numerous pictures and drawings by Feyerabend himself. It also contains hitherto unpublished biographical material that will help to round up our overall image of one of the most influential radical philosophers of the twentieth century.