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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact
Sun --- magnetic flux rope --- magnetic twist --- coronal mass ejection --- filament eruption --- magnetic cloud
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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact
Science: general issues --- Astronomy, space & time --- Sun --- magnetic flux rope --- magnetic twist --- coronal mass ejection --- filament eruption --- magnetic cloud --- Sun --- magnetic flux rope --- magnetic twist --- coronal mass ejection --- filament eruption --- magnetic cloud
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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact
Science: general issues --- Astronomy, space & time --- Sun --- magnetic flux rope --- magnetic twist --- coronal mass ejection --- filament eruption --- magnetic cloud
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Science-class particle spectrometers such as the Energetic Particle Telescope (EPT) provide detailed measurements of particle flux and energy spectra which are necessary for studies of space weather and its causes and effects. Radiation monitors are very common instruments record basic radiation flux and dose rate statistics, normally used to warn of hazardous conditions in space. Despite their relatively inexpensive deployment and resulting widespread usage, such monitors are rarely regarded as science instruments; the Space Application of Timepix-based RAdiation Monitor (SATRAM) is one project which examines this possibility. SATRAM and EPT are both deployed on the PROBA-V satellite, meaning their data products can be directly compared – this work sets out to do that. The necessary conditions for side-by-side comparisons of the two instruments are established, and methods for visualising the data and comparing it qualitatively are developed. A detailed examination is made of the observed differences between the flux measurements of the two telescopes, including calibration factors to help mitigate these differences and potential sources of error which could be resolved by future work. Finally, two case studies of space weather events are presented, demonstrating how each instrument differs but is effective in recording such events. It is shown that EPT and SATRAM already have workable complementarities. In addition, suggestions for future improvement of the processing techniques are given, which arise from the direct comparison of the two instruments.
space weather --- particle radiation --- EPT --- SATRAM --- intercalibration --- particle flux --- radiaiton monitor --- calibration --- geomagnetic storm --- coronal mass ejection --- solar energetic particle event --- Physique, chimie, mathématiques & sciences de la terre > Aérospatiale, astronomie & astrophysique
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The breakup of the Space Shuttle Columbia as it reentered Earth's atmosphere on February 1, 2003, reminded the public--and NASA--of the grave risks posed to spacecraft by everything from insulating foam to space debris. Here, Alan Tribble presents a singular, up-to-date account of a wide range of less conspicuous but no less consequential environmental effects that can damage or cause poor performance of orbiting spacecraft. Conveying a wealth of insight into the nature of the space environment and how spacecraft interact with it, he covers design modifications aimed at eliminating or reducing such environmental effects as solar absorptance increases caused by self-contamination, materials erosion by atomic oxygen, electrical discharges due to spacecraft charging, degradation of electrical circuits by radiation, and bombardment by micrometeorites. This book is unique in that it bridges the gap between studies of the space environment as performed by space physicists and spacecraft design engineering as practiced by aerospace engineers.
Space vehicles --- Space environment. --- Medi ambient espacial --- Vehicles espacials --- Compton effect. --- Debye length. --- Earth shielding. --- activation energy. --- alpha radiation. --- burnout. --- coronal mass ejection. --- displacement damage. --- electrical ground. --- galactic cosmic ray. --- gravitational focusing. --- hydrazine. --- ideal gas law. --- impact cratering. --- latchup. --- launch facility. --- magnetopause. --- magnetosphere. --- mass density. --- nuclear weapons. --- obscuration. --- outgassing. --- pair production. --- reaction efficiency (RE). --- residence time. --- scale height. --- snapover. --- thermosphere. --- view factor. --- Design and construction. --- Disseny i construcció --- Compton effect. --- Debye length. --- Earth shielding. --- activation energy. --- alpha radiation. --- burnout. --- coronal mass ejection. --- displacement damage. --- electrical ground. --- galactic cosmic ray. --- gravitational focusing. --- hydrazine. --- ideal gas law. --- impact cratering. --- latchup. --- launch facility. --- magnetopause. --- magnetosphere. --- mass density. --- nuclear weapons. --- obscuration. --- outgassing. --- pair production. --- reaction efficiency (RE). --- residence time. --- scale height. --- snapover. --- thermosphere. --- view factor.
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The breakup of the Space Shuttle Columbia as it reentered Earth's atmosphere on February 1, 2003, reminded the public--and NASA--of the grave risks posed to spacecraft by everything from insulating foam to space debris. Here, Alan Tribble presents a singular, up-to-date account of a wide range of less conspicuous but no less consequential environmental effects that can damage or cause poor performance of orbiting spacecraft. Conveying a wealth of insight into the nature of the space environment and how spacecraft interact with it, he covers design modifications aimed at eliminating or reducing such environmental effects as solar absorptance increases caused by self-contamination, materials erosion by atomic oxygen, electrical discharges due to spacecraft charging, degradation of electrical circuits by radiation, and bombardment by micrometeorites. This book is unique in that it bridges the gap between studies of the space environment as performed by space physicists and spacecraft design engineering as practiced by aerospace engineers.
Space vehicles --- Space environment. --- Environment, Space --- Extraterrestrial environment --- Space weather --- Extreme environments --- Design and construction. --- Compton effect. --- Debye length. --- Earth shielding. --- activation energy. --- alpha radiation. --- burnout. --- coronal mass ejection. --- displacement damage. --- electrical ground. --- galactic cosmic ray. --- gravitational focusing. --- hydrazine. --- ideal gas law. --- impact cratering. --- latchup. --- launch facility. --- magnetopause. --- magnetosphere. --- mass density. --- nuclear weapons. --- obscuration. --- outgassing. --- pair production. --- reaction efficiency (RE). --- residence time. --- scale height. --- snapover. --- thermosphere. --- view factor.
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The essential introduction to magnetic reconnection—written by a leading pioneer of the fieldPlasmas comprise more than 99 percent of the visible universe; and, wherever plasmas are, magnetic reconnection occurs. In this common and yet incompletely understood physical process, oppositely directed magnetic fields in a plasma meet, break, and then reconnect, converting the huge amounts of energy stored in magnetic fields into kinetic and thermal energy. In Magnetic Reconnection, Masaaki Yamada offers an illuminating synthesis of modern research and advances on this important topic. Magnetic reconnection produces such phenomena as solar flares and the northern lights, and occurs in nuclear fusion devices. A better understanding of this crucial cosmic activity is essential to comprehending the universe and varied technological applications, such as satellite communications. Most of our knowledge of magnetic reconnection comes from theoretical and computational models and laboratory experiments, but space missions launched in recent years have added up-close observation and measurements to researchers’ tools. Describing the fundamental physics of magnetic reconnection, Yamada connects the theory with the latest results from laboratory experiments and space-based observations, including the Magnetic Reconnection Experiment (MRX) and the Magnetospheric Multiscale (MMS) Mission. He concludes by considering outstanding problems and laying out a road map for future research.Aimed at advanced graduate students and researchers in plasma astrophysics, solar physics, and space physics, Magnetic Reconnection provides cutting-edge information vital area of scientific investigation.
Magnetic reconnection. --- SCIENCE / Physics / Magnetism. --- Acceleration. --- Accretion disk. --- Ampere. --- Annihilation. --- Astrophysical plasma. --- Astrophysics. --- Bremsstrahlung. --- Collision frequency. --- Collisionality. --- Coronal loop. --- Coronal mass ejection. --- Coulomb collision. --- Current density. --- Current sheet. --- Cyclotron. --- Debye length. --- Diffusion layer. --- Dissipation. --- Drift velocity. --- Dynamo theory. --- Electric field. --- Electrical resistivity and conductivity. --- Electron temperature. --- Electrostatics. --- Energy transformation. --- Experimental physics. --- Fermi acceleration. --- Feynman diagram. --- Field effect (semiconductor). --- Field line. --- Fine structure. --- Flux tube. --- Fusion power. --- Gauge theory. --- Gyroradius. --- Hall effect. --- Inductance. --- Induction equation. --- Instability. --- Interferometry. --- Ion acoustic wave. --- Ionization. --- Kinetic theory of gases. --- Kink instability. --- Landau damping. --- Langmuir probe. --- Length scale. --- Lorentz force. --- Madison Symmetric Torus. --- Magnetar. --- Magnetic confinement fusion. --- Magnetic diffusivity. --- Magnetic dipole. --- Magnetic energy. --- Magnetic field. --- Magnetic flux. --- Magnetic helicity. --- Magnetization. --- Magnetohydrodynamics. --- Magnetopause. --- Magnetosheath. --- Magnetosonic wave. --- Magnetosphere. --- Maxwell–Boltzmann distribution. --- Mean free path. --- Momentum transfer. --- Neutral beam injection. --- Nonlinear optics. --- Nuclear fusion. --- Paramagnetism. --- Particle physics. --- Pitch angle (particle motion). --- Plasma (physics). --- Plasma acceleration. --- Plasma oscillation. --- Plasma parameter. --- Plasma parameters. --- Plasma stability. --- Plasmoid. --- Quadrupole. --- Relativistic plasma. --- Reversed field pinch. --- Safety factor (plasma physics). --- Scattering. --- Skin effect. --- Solar flare. --- Spacecraft. --- Spatial scale. --- Spheromak. --- Stark effect. --- Substorm. --- Synchrotron radiation. --- Thermodynamic equilibrium. --- Thomson scattering. --- Tokamak. --- Two-dimensional space. --- Van Allen radiation belt. --- Weibel instability. --- X-ray. --- Annihilation, Magnetic field --- Magnetic field annihilation --- Magnetic field line merging --- Merging, Magnetic field line --- Reconnection, Magnetic --- Reconnection (Astronomy) --- Astrophysics --- Geophysics --- Magnetic fields
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