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This book is the first part of the originally planned publication by Z. Svestka and L. D. de Feiter 'Solar High Energy Photon and Particle Emission'. The second part, with the original title, was to be published by de Feiter in about one year from now. However, to the deep sorrow of all of us, Dr de Feiter died suddenly and unexpectedly when the present book was in print. Thus, unfortunately, de Feiter's second part may not appear. Due to the fact that the originally planned publication was divided into two parts, the present book is mainly descriptive and concerned with the flare morphology. It was expected that theoretical interpretations would be extensively developed in the second part, ...
Solar flares are very complex electromagnetic phenomena of a cataclysmic nature. Particles are accelerated to very high velocities and a variety of physical processes happen inside and outside flares. These processes can be studied by a large number of techniques from Earth and from space. The aim is to discover the physics behind solar flares. This goal is complicated because information about the flare mechanism can be obtained only in an indirect way by studying the secondary effects. This book provides three stages in the solution of the solar flare problem. Chapter one describes the connection between observational data and theoretical concepts, where it is stressed that next to investi...
Sudden Ionospheric Disturbances resulting from an interaction of the Solar Flare radiation with the constituents of the upper atmosphere constitute one of the three major aspects of ground level monitoring of solar flares -the other two being optical observations of flares, and the observations of solar bursts in radio wavelengths. SIDs, therefore, form a major part of flare monitoring programme in many observatories. Unlike the other two, however, the ionospheric effects of flares provide one major additional source of interest - the reaction of the ionospheric plasma to an impulsive ionization. The high atmosphere provides a low pressure laboratory without walls in which a host of reaction...
The authors explore solar flares by applying physics and theoretical investigations.
There is a force out there that could destroy our world in minutes. . . . Solar flares—brief bursts of radiation from our sun—have always existed and have never been particularly dangerous. Nature hasn’t changed. But we have. By making our world so dependent on electricity delivered by huge, unprotected power grids we have inadvertently placed humanity at terrible risk. As bestselling author Whitley Strieber explores in this urgent new work, a powerful solar flare could demolish our electrical delivery system, wiping away centuries of civilization in minutes and drastically changing our world. Such a scenario is altogether plausible—and it is the single most dangerous single thing th...
Solar Flares refer to solar coronal mass ejections (CME), also known as geomagnetic storms. Solar flares are an important part of solar activity, associated with rapid and intense energy release in active regions of the solar atmosphere. In this book, Chapter One discusses the origin of solar flares and their threat to our civilization. Chapter Two presents a study of time and space variations of electron density characteristics during a solar X-ray flare influence. Chapter Three provides an analysis of the ionospheric D-region disturbances in response to the effects of solar X-ray flares. Chapter Four updates an analysis from January 2011 through July 2016 and discusses whether new research sheds any light on the ongoing Cycle 24 unusual structure and on its future. Chapter Five explores the latest news on zebra patterns in solar radio emissions.
Solar flares are very complex electromagnetic phenomena of a cataclysmic nature. Particles are accelerated to very high velocities and a variety of physical processes happen inside and outside flares. These processes can be studied by a large number of techniques from Earth and from space. The aim is to discover the physics behind solar flares. This goal is complicated because information about the flare mechanism can be obtained only in an indirect way by studying the secondary effects. This book provides three stages in the solution of the solar flare problem. Chapter one describes the connection between observational data and theoretical concepts, where it is stressed that next to investi...
Published by the American Geophysical Union as part of the Special Publications Series. From the Sun demystifies auroras, magnetic storms, solar flares, cosmic rays and other displays of Sun-Earth interactions. The authors, all well-known figures in space science, explain how solar eruptions affect human technology and society in articles intended for the nonspecialist and adapted from Eos, Transactions, American Geophysical Union. One of the most appealing features is a comprehensive glossary of the terminology necessary to read almost any volume on Sun-Earth connections.
In this volume we compare modem observations of solar flares with results from recent theoretical research and simulation studies on current-carrying loops and their interaction. These topics have undergone rapid developments in the course of recent years. Observational results by X-ray monitoring and imaging spacecraft in the seventies and by dedicated imaging instrumentation in the satellites Solar Max imum Mission and Hinotori, launched 1980 and 1981, have shown the importance of X-ray imaging for understanding the ignition processes of solar flares. Such observations, in tum, stimulated theoretical studies, centered around the flux-tube concept. The classical idea that flares originate b...
This publication is a result of three meetings, each 5 days long, held at the Goddard Space Flight Center on January 24-28, 1983, June 8-14, 1983, and February 13-17, 1984. The meetings were held in the interim between the full operations of the Solar Maximum Mission (SMM) in 1980, and the renewed operations after its repair in orbit in April 1984. Their general objectives were as follows: o Synthesize flare studies after three years of SMM data analysis. Many analyses of individual flares and individual phenomena, often jointly across many data sources had been published, but a need existed for a broader synthesis and updating of our understanding of solar flares since the Skylab Flare Work...