The Strength Of The Sun S Polar Fields
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The Strength Of The Sun S Polar Fields
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Author : Leif Svalgaard
language : en
Publisher:
Release Date : 1978
The Strength Of The Sun S Polar Fields written by Leif Svalgaard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
The magnetic field strength within the polar caps of the sun is an important parameter for both the solar activity cycle and for our understanding of the interplanetary magnetic field. Measurements of the line-of-sight component of the magnetic field generally yield 0.1 to 0.2 mT near times of sunspot minimum. Near sunspot maximum the field weakens and reverses polarity. At the present solar minimum, magnetic field strengths at latitudes above 60 deg are observed to be in the 0.0 to 0.2 mT range. A recent study concludes that the true field strength is unlikely to be more than twice the measured values, and that it is impossible that it could be greater than the measured line-of-sight values by more than a factor of five.
Guide To The Universe The Sun
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Author : David Alexander
language : en
Publisher: Bloomsbury Publishing USA
Release Date : 2009-05-20
Guide To The Universe The Sun written by David Alexander and has been published by Bloomsbury Publishing USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-05-20 with Science categories.
Our knowledge of the universe has increased tremendously over the last century, and our discoveries are not over - there remain scientific mysteries that the next generation of astronomers and planetary scientists will need to solve. This volume in the Greenwood Guides to the Universe series covers the Sun, and provides readers with the most up-to-date understanding of the current state of scientific knowledge. Scientifically sound, but written with the student in mind, The Sun is an excellent first step for researching the exciting scientific discoveries of the star at the center of our solar system. The Sun discusses all areas of research surrounding the subject, including: Sunspots and the solar surface; the many faces of the solar atmosphere; the solar wind and solar storms; and the long-term climate effects on the earth's atmosphere. The volume includes a glossary and a bibliography of useful resources for learning more about the subject.
The Environments Of The Sun And The Stars
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Author : Jean-Pierre Rozelot
language : en
Publisher: Springer
Release Date : 2012-08-17
The Environments Of The Sun And The Stars written by Jean-Pierre Rozelot and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-17 with Science categories.
Based on lectures given at a CNRS summer school in France, this book covers many aspects of stellar environments (both observational and theoretical) and offers a broad overview of the field. More specifically, Part I of the book focuses on the Sun, the properties of the ejected plasma, of the solar wind and on space weather. The second part deals with tides in planetary systems and in binary stellar systems, as well as with interactions in massive binary stars as seen by interferometry. Finally the chapters of Part III discuss the environments of young or evolved stars, stellar winds, agnetic fields and disks. With its broad approach the book will provide advanced students as well as researchers with a good overview of the environments of the Sun and the stars.
The Role Of The Sun In Climate Change
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Author : Douglas V. Hoyt
language : en
Publisher: Oxford University Press
Release Date : 1997-04-03
The Role Of The Sun In Climate Change written by Douglas V. Hoyt and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-04-03 with Science categories.
The luminosity of the sun governs the temperatures of the planets. Yet the solar forcing, or driving, of climate, primarily due to changes in solar radiation, has never been well documented. Recent satellite measurements have shown that solar radiation varies as a function of time and wavelength, a concept that has been hypothesized for the past two centuries and has recently become a major topic with all the attention paid to global warming. This book reviews the physics of the concept of solar forcing, from its beginnings in the early 1800's and apparent success in the 1870's, to its near demise in the 1950's and recent resurgence. Since its emphasis is on solar variations as a driver for climate change, with only a brief discussion of other mechanisms, the book will be of most interest to students in climate studies.
Physics Of The Sun
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Author : Dermott J. Mullan
language : en
Publisher: CRC Press
Release Date : 2022-09-13
Physics Of The Sun written by Dermott J. Mullan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-13 with Science categories.
With an emphasis on numerical modelling, Physics of the Sun: A First Course presents a quantitative examination of the physical structure of the Sun and the conditions of its extended atmosphere. It gives step-by-step instructions for calculating the numerical values of various physical quantities in different regions of the Sun. Fully updated throughout, with the latest results in solar physics, this second edition covers a wide range of topics on the Sun and stellar astrophysics, including the structure of the Sun, solar radiation, the solar atmosphere, and Sun-space interactions. It explores how the physical conditions in the visible surface of the Sun are determined by the opacity of the material in the atmosphere. It also presents the empirical properties of convection in the Sun, discusses the physical conditions which must be satisfied for nuclear reactions to occur in the core, and describes how radiation transports energy from the core outwards. This text enables a practical appreciation of the physical models of solar processes. Numerical modelling problems and step-by-step instructions are featured throughout, to empower students to calculate, using their own codes, the interior structure of different parts of the Sun and the frequencies of p-modes and g-modes. They encourage a firm grasp of the numerical values of actual physical parameters as a function of radial location in the Sun. It is an ideal introduction to solar physics for advanced undergraduate and graduate students in physics and astronomy, in addition to research professionals looking to incorporate modelling into their practises. Extensive bibliographies at the end of each chapter enable the reader to explore the latest research articles in the field. Features: Fully updated with the latest results from the spacecraft Hinode, Stereo, Solar Dynamics Observatory (SDO), Interface Region Imaging Spectrograph (IRIS), and Parker Solar Probe Presents step-by-step explanations for calculating numerical models of the photosphere, convection zone, and radiative interior with exercises and simulation problems to test learning Describes the structure of polytropic spheres and the acoustic power in the Sun and the process of thermal conduction in different physical conditions
Cosmic Winds And The Heliosphere
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Author : Jack Randolph Jokipii
language : en
Publisher: University of Arizona Press
Release Date : 1997-10
Cosmic Winds And The Heliosphere written by Jack Randolph Jokipii and has been published by University of Arizona Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-10 with Science categories.
Contributors examine the physics of wind origin and physical phenomena in winds, including heliospheric shocks, magnetohydrodynamic turbulence, and kinetic phenomena--and their interactions with surrounding media. Contributions range from studies of the interstellar cloud surrounding the solar system to solar wind interaction with comets.
Summaries Of Projects Completed In Fiscal Year
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Author : National Science Foundation (U.S.)
language : en
Publisher:
Release Date : 1979
Summaries Of Projects Completed In Fiscal Year written by National Science Foundation (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Engineering categories.
Summaries Of Projects Completed
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Author : National Science Foundation (U.S.)
language : en
Publisher:
Release Date :
Summaries Of Projects Completed written by National Science Foundation (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Engineering categories.
Solar Geophysical Data
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Author :
language : en
Publisher:
Release Date : 1970
Solar Geophysical Data written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Geophysics categories.
Physics Of The Sun And Its Atmosphere Proceedings Of The National Workshop India On Recent Advances In Solar Physics
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Author : Udit Narain
language : en
Publisher: World Scientific
Release Date : 2008-10-24
Physics Of The Sun And Its Atmosphere Proceedings Of The National Workshop India On Recent Advances In Solar Physics written by Udit Narain and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-10-24 with Science categories.
This book presents a pedagogical, updated and modern view of the Sun from its interior to its exterior as well as the Sun-Earth system. Written by eminent scientists in solar physics, the chapters deal with recent advances in solar physics, seismic Sun, solar magnetic field, waves and oscillations, spectroscopic diagnostics of solar plasmas, partially ionized lower atmosphere, coronal heating, coronal mass ejections, radio Sun, solar wind, and the Sun-Earth system. Each chapter is fully illustrated and has a comprehensive reference list. The book covers all major topics in solar physics, and presents a rich menu to motivate graduate students who wish to pursue a solar physics research career.