Chasing The Cosmic Accelerators With High Energy Astroparticles
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Chasing The Cosmic Accelerators With High Energy Astroparticles
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Author : Claire Guépin
language : en
Publisher:
Release Date : 2019
Chasing The Cosmic Accelerators With High Energy Astroparticles written by Claire Guépin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
The advent of time-domain and multimessenger astronomy opens new perspectives to study the most energetic phenomena of our universe, and understand the mysterious origins of ultra-high-energy cosmic rays (UHECR) and high-energy (HE) neutrinos. Cosmic rays appear as key players in the production of non-thermal and, more generally, multimessenger emissions. In this thesis, we develop several analytical and numerical tools to study the acceleration and interactions of cosmic rays in the vicinity of energetic sources. As HE neutrinos are clear signatures of these processes, we study the detectability of HE neutrino flares from transient sources. We identify two interesting categories of sources, namely pulsars and tidal disruption events. We show with particle-in-cell simulations that pulsars can accelerate high-energy cosmic rays. We demonstrate that a population of millisecond pulsars located in the Galactic bulge can explain the di↵use gamma-ray emission observed by the HESS detector. Moreover, an extragalactic population of tidal disruptions by massive black holes powering relativistic jets can reproduce the spectrum and composition of UHECRs measured by the Auger experiment, but cannot produce the HE neutrinos detected by the IceCube experiment. Finally, we participate to the development of novel techniques that aim at detecting and reconstructing the properties of very-high-energy (VHE) neutrinos and UHECRs, in the context of the POEMMA and GRAND projects.
Gamma Ray And Neutrino Signatures Of Galactic Cosmic Ray Accelerators
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Author : Silvia Celli
language : en
Publisher: Springer
Release Date : 2021-01-02
Gamma Ray And Neutrino Signatures Of Galactic Cosmic Ray Accelerators written by Silvia Celli and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-02 with Science categories.
This book addresses three “hot” topics concerning the general problem of the origin of Galactic cosmic rays, namely (1) the acceleration, propagation, and radiation of particles in supernova remnants; (2) very high energy neutrinos from the Galactic Center; and (3) the potential held by the next-generation gamma-ray and neutrino detectors CTA and KM3NeT for studying extended non-thermal sources in the Galaxy. The topics are intrinsically connected to determining the nature (“hadronic or leptonic?”) of gamma-ray emissions from young and middle-aged supernova remnants and the search for cosmic-ray PeVatrons. The results and conclusions provided here are based on extensive analytical and numerical simulations, which are formulated and presented in a straightforward format that can be readily used in the interpretations of gamma-ray and neutrino observations, as well as for confident predictions for future measurements.
Very High Energy Cosmic Gamma Radiation
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Author : Felix A. Aharonian
language : en
Publisher: World Scientific
Release Date : 2004
Very High Energy Cosmic Gamma Radiation written by Felix A. Aharonian and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Science categories.
Gamma ray astronomy, the branch of high energy astrophysics that studies the sky in energetic ?-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 OC hot topicsOCO 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."
Particle Accelerators Colliders And The Story Of High Energy Physics
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Author : Raghavan Jayakumar
language : en
Publisher: Springer
Release Date : 2013-11-29
Particle Accelerators Colliders And The Story Of High Energy Physics written by Raghavan Jayakumar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-29 with Science categories.
This book takes the readers through the science behind particle accelerators, colliders and detectors: the physics principles that each stage of the development of particle accelerators helped to reveal, and the particles they helped to discover. The book culminates with a description of the Large Hadron Collider, one of the world’s largest and most complex machines operating in a 27-km circumference tunnel near Geneva. The book provides the material honestly without misrepresenting the science for the sake of excitement or glossing over difficult notions. The principles behind each type of accelerator is made accessible to the undergraduate student and even to a lay reader with cartoons, illustrations and metaphors. Simultaneously, the book also caters to different levels of reader’s background and provides additional materials for the more interested or diligent reader.
Cosmic Bullets
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Author : Roger Clay
language : en
Publisher: Addison-Wesley Longman
Release Date : 1998-05-10
Cosmic Bullets written by Roger Clay and has been published by Addison-Wesley Longman this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-05-10 with Science categories.
In 1992 the fastest object known to mankind hit the Earth's atmosphere at a speed within a billion-trillionth of one percent of the speed of light, carrying an energy far above that of the most powerful particle accelerator ever built. That object was a cosmic ray. "Cosmic Bullets" tells the incredible story of the discovery and study of these messengers from space.
On The Origin Of Ultra High Energy Cosmic Rays
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Author :
language : en
Publisher:
Release Date : 2009
On The Origin Of Ultra High Energy Cosmic Rays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Turbulence-driven plasma accelerators produced by magnetized accretion disks around black holes are proposed as the mechanism mainly responsible for observed cosmic ray protons with ultra high energies 1019-1021 eV. The magnetized disk produces a voltage comparable to these cosmic ray energies. Here we present a Poynting model in which this voltage provides all of the energy to create the jet-like structures observed to be ejected from accretion disks, and this voltage also accelerates ions to high energies at the top of the expanding structure. Since the inductive electric field E = -v x B driving expansion has no component parallel to the magnetic field B, ion acceleration requires plasma wave generation - either a coherent wave accelerator as recently proposed, or instability-driven turbulence. We find that turbulence can tap the full inductive voltage as a quasi-steady accelerator, and even higher energies are produced by transient events on this structure. We find that both MHD modes due to the current and ion diffusion due to kinetic instability caused by the non-Maxwellian ion distribution contribute to acceleration. We apply our results to extragalactic giant radiolobes, whose synchrotron emissions serve to calibrate the model, and we discuss extrapolating to other astrophysical structures. Approximate calculations of the cosmic ray intensity and energy spectrum are in rough agreement with data and serve to motivate more extensive MHD and kinetic simulations of turbulence that could provide more accurate cosmic ray and synchrotron spectra to be compared with observations. A distinctive difference from previous models is that the cosmic ray and synchrotron emissions arise from different parts of the magnetic structure, thus providing a signature for the model.
Non Accelerator Particle And Astroparticle Physics
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Author : Ramanath Cowsik
language : en
Publisher: Taylor & Francis Group
Release Date : 2013-11-26
Non Accelerator Particle And Astroparticle Physics written by Ramanath Cowsik and has been published by Taylor & Francis Group this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-26 with Science categories.
Ultra High Energy Cosmic Rays
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Author : Anna Uryson
language : en
Publisher:
Release Date : 2010
Ultra High Energy Cosmic Rays written by Anna Uryson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Cosmic rays categories.
This book discusses various aspects of cosmic ray physics and astrophysics. Also discussed herein are answers to those astrophysical and cosmic ray questions which are essential for understanding of the subject, such as description of the Universe and of some astrophysical objects, a brief history of cosmic ray investigation, the peculiarities of detection of cosmic rays at various energy bands, a list of arrays for an ultra-high-energy-cosmic-ray investigation and GZK-effect.
High Energy Neutrino Astronomy
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Author : Dan Hooper
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2017-03-21
High Energy Neutrino Astronomy written by Dan Hooper and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-21 with categories.
High-energy Neutrino Astronomy: The Cosmic Ray Connection
Opening The Ultra High Energy Cosmic Ray Window From The Top
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Author :
language : en
Publisher:
Release Date : 2000
Opening The Ultra High Energy Cosmic Ray Window From The Top written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
While several arguments can be proposed against the existence of particles with energy in excess of (3--5) x 1019 eV in the cosmic ray spectrum, these particles are actually observed and their origin seeks for an explanation. After a description of the problems encountered in explaining these ultra-high energy cosmic rays (UHECRs) in the context of astrophysical sources, the authors review the so-called Top-Down (TD) Models, in which UHECRs are the result of the decay of very massive unstable particles, possibly created in the Early Universe. Particular emphasis will be given to the signatures of the TD models, likely to be accessible to upcoming experiments like Auger.