Plasma Loops In The Solar Corona
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Plasma Loops In The Solar Corona
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Author : R. J. Bray
language : en
Publisher: Cambridge University Press
Release Date : 1991-07-18
Plasma Loops In The Solar Corona written by R. J. Bray and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-07-18 with Science categories.
A comprehensive account of the properties of plasma loops, the fundamental structural elements of the solar corona. Plasma loops cover a wide range of sizes and range in temperature from tens of thousands to millions of degrees. They not only define the structure of individual active regions but connect different active regions--even across the solar equator. Loops also play an integral and decisive role in the enormous solar explosions called flares. Over recent years a wealth of space and ground-based observations of loops has been obtained in various widely-spaced regions of the electromagnetic spectrum. In this book the authors have selected the best observational material from the literature on which to base a detailed account of the properties of flare and non-flare loops. The book also explores the larger implications of the loop structures for our understanding of solar and stellar coronae. The text is enhanced by a large number of illustrations and unique and beautiful photographs obtained from the ground and from space.
Plasma Loops In The Solar Corona
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Author : R. J. Bray
language : en
Publisher: Cambridge University Press
Release Date : 2006-03-30
Plasma Loops In The Solar Corona written by R. J. Bray and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-03-30 with Science categories.
A comprehensive account of the properties of plasma loops, the fundamental structural elements of the solar corona. Plasma loops cover a wide range of sizes and range in temperature from tens of thousands to millions of degrees. They not only define the structure of individual active regions but connect different active regions--even across the solar equator. Loops also play an integral and decisive role in the enormous solar explosions called flares. Over recent years a wealth of space and ground-based observations of loops has been obtained in various widely-spaced regions of the electromagnetic spectrum. In this book the authors have selected the best observational material from the literature on which to base a detailed account of the properties of flare and non-flare loops. The book also explores the larger implications of the loop structures for our understanding of solar and stellar coronae. The text is enhanced by a large number of illustrations and unique and beautiful photographs obtained from the ground and from space.
Physics Of The Solar Corona
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Author : Markus Aschwanden
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-01-30
Physics Of The Solar Corona written by Markus Aschwanden and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-01-30 with Science categories.
A thorough introduction to solar physics based on recent spacecraft observations. The author introduces the solar corona and sets it in the context of basic plasma physics before moving on to discuss plasma instabilities and plasma heating processes. The latest results on coronal heating and radiation are presented. Spectacular phenomena such as solar flares and coronal mass ejections are described in detail, together with their potential effects on the Earth.
The Physics Of The Solar Corona And Transition Region
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Author : Oddbjorn Engvold
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
The Physics Of The Solar Corona And Transition Region written by Oddbjorn Engvold and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
Solar Physics publishes up to two Topical Issues per year that focus on areas of especially vigorous and active research. The present Topical Issue contains papers of recent results on the solar corona, as well as on the transition region and low solar wind. The majority of these papers, which were all refereed in accordance with the standards of Solar Physics, were presented in August 1999 at a workshop held in Monterey, California. The authors were offered the opportunity to present relevant parts of their contributions on an accompanying CD ROM of this Topical Issue. The Sun's magnetic field is responsible for the spectacularly dynamic and intri cate phenomenon that we call the corona. The past decade has seen an enormous increase in our understanding of this part of the solar outer atmosphere, both as a result of observations and because of rapid advances in numerical studies. The Yohkoh satellite has observed the Sun now for over eight years, producing spectac ular sequences of images that convey the complexity of the corona. The imaging and spectroscopic instruments on SOHO have added information on the cooler part of the corona. And since April of 1998 TRACE has given us very high resolution images of the 1-2 MK corona, at cadences that allow detailed observations of field oscillations, loop evolution, mass ejecta, etc.
Magnetic Helicity Spheromaks Solar Corona Loops And Astrophysical Jets
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Author : Bellan Paul M
language : en
Publisher: World Scientific
Release Date : 2018-03-09
Magnetic Helicity Spheromaks Solar Corona Loops And Astrophysical Jets written by Bellan Paul M and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-09 with Science categories.
Pedagogical in style, this book provides insights into plasma behavior valid over twenty orders of magnitude in both time and space. The book assumes that the reader has a basic knowledge of magnetohydrodynamics and explains topics using detailed theoretical analysis supported by discussion of relevant experiments. This comprehensive approach gives the reader an understanding of the essential theoretical ideas and their application to real situations. The book starts by explaining the topological concept of magnetic helicity and then develops a helicity-based model that predicts the ultimate state towards which magnetically-dominated plasmas evolve. The model predicts that no matter how messy or complicated the dynamics, a great range of plasma configurations always self-organize to a unique, simple final state. This self-organization, called relaxation, is a fundamental concept that unifies understanding of spheromaks, solar corona loops, interplanetary magnetic clouds, and astrophysical jets. After establishing why relaxation occurs, the book then examines how relaxation occurs. It shows that relaxation involves a sequence of complex non-equilibrium dynamics including fast self-collimated plasma jets, kink instabilities, magnetic reconnection, and phenomena outside the realm of magnetohydrodynamics. Contents: IntroductionBasic ConceptsMagnetic HelicityRelaxation of an Isolated Configuration to the Taylor StateRelaxation in Driven ConfigurationsThe MHD Energy Principle, Helicity, and Taylor StatesSurvey of Spheromak Formation SchemesClassification of Regimes: An Imperfect Analogy to ThermodynamicsAnalysis of Isolated Cylindrical SpheromaksThe Role of the WallAnalysis of Driven Spheromaks: Strong CouplingHelicity Flow and DynamosConfinement and Transport in SpheromaksSome Important Practical IssuesBasic Diagnostics for SpheromaksApplications of SpheromaksInitial Dynamics Leading to Relaxation: MHD JetsDynamics Associated with Relaxation: Kinks, Rayleigh-Taylor, Hard X-RaysBeyond MHD: Whistler Waves and Fast Magnetic ReconnectionZero-β Models for Solar and Space Phenomena: Helicity, Force-Free EquilibriaFinite-β Models and Experiments for Solar Phenomena: Collimation, Flows, ExpansionBeyond MHD: Extreme Particle Orbits in Helical Magnetic FieldsFinite-β Toroidal Magnetic Cloud ModelAstrophysical Jets, Accretion, Angular Momentum Removal, and Space DynamosAppendices: Vector Identities and OperatorsBessel Orthogonality RelationsCapacitor BanksTransmission Lines, Pulse Forming Networks, and TransformersSelected Formulae Readership: Researchers, graduate students, and advanced undergraduates in plasma physics, solar physics, and astrophysics; mathematicians interested in helicity, topology, and self-organization. Keywords: Magnetohydrodynamics;Magnetic Helicity;Spheromaks;MHD;MHD Jets;Kink;Rayleigh Taylor;Accretion Disk;Astrophysical Jet;Solar Prominence;Solar Corona;Solar Corona Loop;CME;Relative Helicity;Taylor Relaxation;Magnetic Reconnection;Whistler Waves;Hall MHD;Electron MHD;Alfven Waves;Magnetic Clouds;Canonical Angular Momentum;Magnetic BrakingReview: Key Features: Unique, no completing titlesThis new revision contains discussion of dynamics underlying self-organization (Taylor relaxation)This new revision contains updates on spheromak research since 2000
Physics Of The Solar Corona
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Author : C.J. Macris
language : en
Publisher: Springer
Release Date : 1971-12-31
Physics Of The Solar Corona written by C.J. Macris and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971-12-31 with Science categories.
Proceedings of the NATO Advanced Institute on Physics of the Solar Corona, held in Cavouri-Vouliagmeni, Athens, Greece, 6-17 September 1970
A Coronal Loop In A Box From Energy Generation To Coronal Emission
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Author : Cosima Alexandra Breu
language : en
Publisher:
Release Date : 2023
A Coronal Loop In A Box From Energy Generation To Coronal Emission written by Cosima Alexandra Breu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
The corona is the outer atmosphere of the Sun. It contains an abundance of bright arcs that consist of hot plasma trapped by the magnetic field. These coronal loops are heated to temperatures far surpassing the solar surface temperature. The heating of this hot coronal plasma is one of the major open problems in stellar astrophysics. Several mechanisms have been proposed, which can be divided roughly into models based on the slow braiding of magnetic field lines and subsequent impulsive energy release in the corona, the dissipation of magnetohydrodynamic waves, and flux emergence and cancel...
Catastrophic Cooling In Solar Coronal Loops
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Author : Daniel Müller
language : en
Publisher: Cuvillier Verlag
Release Date : 2004
Catastrophic Cooling In Solar Coronal Loops written by Daniel Müller and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
The Solar Dynamics Observatory
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Author : Phillip Chamberlin
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-05-05
The Solar Dynamics Observatory written by Phillip Chamberlin and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-05-05 with Science categories.
This volume is dedicated to the Solar Dynamics Observatory (SDO), which was launched 11 February 2010. The articles focus on the spacecraft and its instruments: the Atmospheric Imaging Assembly (AIA), the Extreme Ultraviolet Variability Experiment (EVE), and the Helioseismic and Magnetic Imager (HMI). Articles within also describe calibration results and data processing pipelines that are critical to understanding the data and products, concluding with a description of the successful Education and Public Outreach activities. This book is geared towards anyone interested in using the unprecedented data from SDO, whether for fundamental heliophysics research, space weather modeling and forecasting, or educational purposes. Previously published in Solar Physics journal, Vol. 275/1-2, 2012. Selected articles in this book are published open access under a CC BY-NC 2.5 license at link.springer.com. For further details, please see the license information in the chapters.
Solar Prominences
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Author : Jean-Claude Vial
language : en
Publisher: Springer
Release Date : 2014-11-24
Solar Prominences written by Jean-Claude Vial and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-24 with Science categories.
This volume presents the latest research results on solar prominences, including new developments on e.g. chirality, fine structure, magnetism, diagnostic tools and relevant solar plasma physics. In 1875 solar prominences, as seen out of the solar limb, were described by P.A. Secchi in his book Le Soleil as "gigantic pink or peach-flower coloured flames". The development of spectroscopy, coronagraphy and polarimetry brought tremendous observational advances in the twentieth century. The authors present and discuss exciting new challenges (resulting from observations made by space and ground-based telescopes in the 1990s and the first decade of the 21st century) concerning the diagnostics of prominences, their formation, their life time and their eruption along with their impact in the heliosphere (including the Earth). The book starts with a general introduction of the prominence “object” with some historical background on observations and instrumentation. In the next chapter, the various forms of prominences are described with a thorough attempt of classification. Their thermodynamic (and velocity) properties are then derived with emphasis on the methods (and their limits) used. This goes from the simplest optically thin case to the heavy radiative treatment of plasmas out of local thermodynamic equilibrium. The following chapters are devoted to the magnetic field measurements and indirect derivation. A new branch of diagnostic tools, the seismology, is presented along with some MHD basics. This allows to better understand the propagation of waves, the energy and force equilibria. Both small-scale and large-scale studies and their relationship are presented. The importance of the newly discovered cavities is stressed in the context of prominence destabilization. The issues of prominence formation and eruption, their connection with flares and Coronal Mass Ejections and their impact on the Earth are addressed on the basis of the latest results. Finally, an exciting new area of research is unveiled with the newly discovered evidence of similar manifestations in the Universe and their possible impact on the habitability of exoplanets. References to the basic physics (where necessary) are provided and the proposed web sites addresses will allow the reader to load exciting movies. The book is aimed at advanced students in astrophysics, post-graduates, solar physicists and more generally astrophysicists. Amateurs will enjoy the many new images which go with the text.
