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Coronal Seismology

Coronal Seismology
Author: Alexander Stepanov
Publisher: John Wiley & Sons
Total Pages: 235
Release: 2012-05-14
Genre: Science
ISBN: 3527409947

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This concise and systematic account of the current state of this new branch of astrophysics presents the theoretical foundations of plasma astrophysics, magneto-hydrodynamics and coronal magnetic structures, taking into account the full range of available observation techniques -- from radio to gamma. The book discusses stellar loops during flare energy releases, MHD waves and oscillations, plasma instabilities and heating and charged particle acceleration. Current trends and developments in MHD seismology of solar and stellar coronal plasma systems are also covered, while recent progress is presented in the observational study of quasi-periodic pulsations in solar and stellar flares with radio, optical, X and gamma rays. In addition, the authors investigate the origin of coherent radio emission from stellar loops, paying special attention to their fine structure. For advanced students and specialists in astronomy, as well as theoretical and plasma physics.


Foundations of Modern Global Seismology

Foundations of Modern Global Seismology
Author: Charles J. Ammon
Publisher: Academic Press
Total Pages: 604
Release: 2020-10-13
Genre: Science
ISBN: 0128165170

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Modern Global Seismology, Second Edition, is a complete, self-contained primer on seismology, featuring extensive coverage of all related aspects—from observational data through prediction—and emphasizing the fundamental theories and physics governing seismic waves, both natural and anthropogenic. Based on thoroughly class-tested material, the text provides a unique perspective on Earth’s large-scale internal structure and dynamic processes, particularly earthquake sources, and the application of theory to the dynamic processes of the earth’s upper layer. This insightful new edition is designed for accessibility and comprehension for graduate students entering the field. Exploration seismologists will also find it an invaluable resource on topics such as elastic-wave propagation, seismic instrumentation, and seismogram analysis. Includes more than 400 illustrations, from both recent and traditional research articles, to help readers visualize mathematical relationships, as well as boxed features to explain advanced topics Offers incisive treatments of seismic waves, waveform evaluation and modeling, and seismotectonics, as well as quantitative treatments of earthquake source mechanics and numerous examples of modern broadband seismic recordings Covers current seismic instruments and networks and demonstrates modern waveform inversion methods Includes extensive, updated references for further reading new to this edition Features reorganized chapters split into two sections, beginning with introductory content such as tectonics and seismogram analysis, and moving on to more advanced topics, including seismic wave excitation and propagation, multivariable and vector calculus, and tensor approaches Completely updated references and figures to bring the text up to date Includes all-new sections on recent advancements and to enhance examples and understanding Split into shorter chapters to allow more flexibility for instructors and easier access for researchers, and includes exercises


Physics of the Solar Corona

Physics of the Solar Corona
Author: Markus Aschwanden
Publisher: Springer Science & Business Media
Total Pages: 924
Release: 2006-08-26
Genre: Science
ISBN: 3540307664

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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.


Theoretical Global Seismology

Theoretical Global Seismology
Author: F. A. Dahlen
Publisher: Princeton University Press
Total Pages: 1040
Release: 2020-08-04
Genre: Science
ISBN: 0691216150

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After every major earthquake, the Earth rings like a bell for several days. These free oscillations of the Earth and the related propagating body and surface waves are routinely detected at broad-band seismographic stations around the world. In this book, F. A. Dahlen and Jeroen Tromp present an advanced theoretical treatment of global seismology, describing the normal-mode, body-wave, and surface-wave methods employed in the determination of the Earth's three-dimensional internal structure and the source mechanisms of earthquakes. The authors provide a survey of both the history of global seismological research and the major theoretical and observational advances made in the past decade. The book is divided into three parts. In the first, "Foundations," Dahlen and Tromp give an extensive introduction to continuum mechanics and discuss the representation of seismic sources and the free oscillations of a completely general Earth model. The resulting theory should provide the basis for future scientific discussions of the elastic-gravitational deformation of the Earth. The second part, "The Spherical Earth," is devoted to the free oscillations of a spherically symmetric Earth. In the third part, "The Aspherical Earth," the authors discuss methods of dealing with the Earth's three-dimensional heterogeneity. The book is concerned primarily with the forward problem of global seismology--detailing how synthetic seismograms and spectra may be calculated and interpreted. As a long-needed unification of theories in global seismology, the book will be important to graduate students and to professional seismologists, geodynamicists, and geomagnetists, as well as to astronomers who study the free oscillations of the Sun and other stars.


The Earth's Inner Core

The Earth's Inner Core
Author: Hrvoje Tkalčić
Publisher: Cambridge University Press
Total Pages: 237
Release: 2017-02-02
Genre: Science
ISBN: 1107037301

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The first comprehensive review of past and contemporary research on the Earth's inner core from a seismological perspective. Providing a detailed account of how seismology is used in inner core research, and suggesting avenues for further study, it is an essential resource for researchers and students studying seismology and deep Earth processes.


Coronal Heating by Mhd Waves and Oscillating Rotating Stars

Coronal Heating by Mhd Waves and Oscillating Rotating Stars
Author: Kayoomars Karami
Publisher: LAP Lambert Academic Publishing
Total Pages: 116
Release: 2010-09
Genre:
ISBN: 9783838341781

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This book contains the two independent parts which are applicable to the fields of helio-seismology and astro-seismology, respectively. The first part deals with the issue of coronal heating by damping of MHD waves. In the second part, the third order effect of rotation on stellar oscillations is investigated. The book is useful for readers who are expert in the filed of solar and stellar oscillations.


Coronal Magnetometry

Coronal Magnetometry
Author: Sarah E. Gibson
Publisher: Frontiers Media SA
Total Pages: 174
Release: 2017-07-11
Genre:
ISBN: 2889452204

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Magnetism defines the complex and dynamic solar corona. It determines the magnetic loop structure that dominates images of the corona, and stores the energy necessary to drive coronal eruptive phenomena and flare explosions. At great heights the corona transitions into the ever-outflowing solar wind, whose speed and three-dimensional morphology are controlled by the global coronal magnetic field. Coronal magnetism is thus at the heart of any understanding of the nature of the corona, and essential for predictive capability of how the Sun affects the Earth. Coronal magnetometry is a subject that requires a concerted effort to draw together the different strands of research happening around the world. Each method provides some information about the field, but none of them can be used to determine the full 3D field structure in the full volume of the corona. Thus, we need to combine them to understand the full picture. The purpose of this Frontiers Research Topic on Coronal Magnetometry is to provide a forum for comparing and coordinating these research methods, and for discussing future opportunities.


Coronal Seismology

Coronal Seismology
Author: Maria V. Dymova
Publisher:
Total Pages:
Release: 2006
Genre:
ISBN:

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