Solar Activity And Its Magnetic Origin Iau S233
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Solar Activity And Its Magnetic Origin Iau S233
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Author : Volker Bothmer
language : en
Publisher: Cambridge University Press
Release Date : 2006-12-25
Solar Activity And Its Magnetic Origin Iau S233 written by Volker Bothmer 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 2006-12-25 with Science categories.
The variability of the Sun's magnetic field is the main driver of solar activity. IAU S233 was held to further our understanding of solar magnetic processes and its interplanetary consequences. The Symposium was organised into seven sessions covering: the generation and transport of solar magnetic fields; magnetic fields and coupling processes in the solar atmosphere, coronal heating and small-scale dynamics; large-scale coronal structure; the origin and evolution of the solar wind; flares, CMEs and SEPs; and new instrumentation and missions. Each session included contributions by world-wide leading scientists in the form of tutorials, research reviews and presentations of the latest results. A special eighth session was dedicated to educating young national and international astronomers. With reviews and research contributions covering a broad range of disciplines in solar and heliospheric research, this volume is a valuable interdisciplinary resource for professional astronomers and graduate students.
Reports On Astronomy 2006 2009 Iau Xxviia
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Author : Karel A. van der Hucht
language : en
Publisher: Cambridge University Press
Release Date : 2009-03-23
Reports On Astronomy 2006 2009 Iau Xxviia written by Karel A. van der Hucht 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 2009-03-23 with Science categories.
The Transactions XXVIIA Reports on Astronomy 2006-2009 provides a comprehensive and authoritative review of what has been achieved in astronomy during the years 2006 to 2009. These insightful and up-to-date reviews have been written by the presidents and chairpersons of the IAU scientific bodies: the Divisions, the Commissions, and the Working Groups. Topics covered in this wide-ranging volume include: fundamental astronomy; the Sun and heliosphere; planetary sciences; stars; variable stars; interstellar matter; the Galactic system; galaxies and the Universe; optical and infrared techniques; radio astronomy; space and high-energy astrophysics; and other IAU activities. The reviews have been written at a level suitable for colleagues in the same fields, but will also be useful for students and researchers wishing to gain an overview of astronomical fields beyond their own research area.
Magnetodynamic Phenomena In The Solar Atmosphere
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Author : Yutaka Uchida
language : en
Publisher: Springer Science & Business Media
Release Date : 1996-09-30
Magnetodynamic Phenomena In The Solar Atmosphere written by Yutaka Uchida 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 1996-09-30 with Science categories.
These are the Proceedings of Colloquium No. 153 of the International Astro nomical Union, held at Makuhari near Tokyo on May 22 - 26, 1995, and hosted by the National Astronomical Observatory. This meeting was intended to be an interdisciplinary meeting between re searchers of solar and stellar activity, in order for them to exchange the newest information in each field. While each of these areas has seen remarkable advances in recent years, and while the researchers in each field have felt that information from the other's domain would be extremely useful in their own work, there have not been very many opportunities for intensive exchanges of information between these closely related fields. We therefore expected much from this meeting in pro viding stellar researchers with new results of research on the counterparts of their targets of research, spatially and temporarily resolved, as observed on the Sun. Likewise we hoped to provide solar researchers with new results on gigantic ver sions of their targets of research under the very different physical circumstances on other active stars. It was our greatest pleasure that we had wide attendance of experts and active researchers of both research fields from all over the world. This led to extremely interesting talks and very lively discussions, thereby stimulating the exchange of ideas across the fields.
The Origin And Dynamics Of Solar Magnetism
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Author : M.J. Thompson
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-05-01
The Origin And Dynamics Of Solar Magnetism written by M.J. Thompson 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 2009-05-01 with Science categories.
Starting in 1995 numerical modeling of the Earth’s dynamo has ourished with remarkable success. Direct numerical simulation of convection-driven MHD- ow in a rotating spherical shell show magnetic elds that resemble the geomagnetic eld in many respects: they are dominated by the axial dipole of approximately the right strength, they show spatial power spectra similar to that of Earth, and the magnetic eld morphology and the temporal var- tion of the eld resembles that of the geomagnetic eld (Christensen and Wicht 2007). Some models show stochastic dipole reversals whose details agree with what has been inferred from paleomagnetic data (Glatzmaier and Roberts 1995; Kutzner and Christensen 2002; Wicht 2005). While these models represent direct numerical simulations of the fundamental MHD equations without parameterized induction effects, they do not match actual pla- tary conditions in a number of respects. Speci cally, they rotate too slowly, are much less turbulent, and use a viscosity and thermal diffusivity that is far too large in comparison to magnetic diffusivity. Because of these discrepancies, the success of geodynamo models may seem surprising. In order to better understand the extent to which the models are applicable to planetary dynamos, scaling laws that relate basic properties of the dynamo to the fundamental control parameters play an important role. In recent years rst attempts have been made to derive such scaling laws from a set of numerical simulations that span the accessible parameter space (Christensen and Tilgner 2004; Christensen and Aubert 2006).
Solar And Stellar Magnetic Fields Origins And Coronal Effects
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Author : Jan Olof Stenflo
language : en
Publisher: Springer
Release Date : 1983-07-31
Solar And Stellar Magnetic Fields Origins And Coronal Effects written by Jan Olof Stenflo and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983-07-31 with Science categories.
Proceedings of IAU Symposium No. 102 held in Zurich, Switzerland, August 2-6, 1982
Proceedings Of The Twenty Seventh General Assembly Rio De Janeiro 2009
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Author : Ian F. Corbett
language : en
Publisher: Cambridge University Press
Release Date : 2010-06-03
Proceedings Of The Twenty Seventh General Assembly Rio De Janeiro 2009 written by Ian F. Corbett 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 2010-06-03 with Science categories.
A complete record of the formal organisational and administrative proceedings of the XXVII General Assembly of the International Astronomical Union.
Solar Dynamics And Magnetism From The Interior To The Atmosphere
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Author : Nagi N. Mansour
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-03
Solar Dynamics And Magnetism From The Interior To The Atmosphere written by Nagi N. Mansour 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 2013-12-03 with Science categories.
Discusses recent advances and new problems in the exploration of the Sun's interior structure, solar dynamics and dynamo, mechanisms of sunspot and active regions formation, sources of solar irradiance variations and links between the subsurface dynamics, flaring and CME activity. NASA's Solar Dynamics Observatory (SDO) mission has provided a large amount of new data on solar dynamics and magnetic activities during the rising phase of the current and highly unusual solar cycle. These data are complemented by the continuing SOHO mission and by ground-based observatories that include the GONG helioseismology network and the New Solar Telescope. Also, the observations are supported by realistic numerical simulations on supercomputers. This unprecedented amount of data provides a unique opportunity for multi-instrument investigations that address fundamental problems of the origin of solar magnetic activity at various spatial and temporal scales. This book demonstrates that the synergy of high-resolution multi-wavelength observations and simulations is a key to uncovering the long-standing puzzles of solar magnetism and dynamics. This volume is aimed at researchers and graduate students active in solar physics and space science. Originally published in Solar Physics journal, Vol. 287/1-2, 2013.
Solar Terrestrial Magnetic Activity And Space Environment
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Author : H. Wang
language : en
Publisher: Elsevier
Release Date : 2002-11-20
Solar Terrestrial Magnetic Activity And Space Environment written by H. Wang and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-11-20 with Science categories.
The COSPAR Colloquium on Solar-Terrestrial Magnetic Activity and Space Environment (STMASE) was held in the National Astronomy Observatories of Chinese Academy of Sciences (NAOC) in Beijing, China in September 10-12, 2001. The meeting was focused on five areas of the solar-terrestrial magnetic activity and space environment studies, including study on solar surface magnetism; solar magnetic activity, dynamical response of the heliosphere; space weather prediction; and space environment exploration and monitoring. A hot topic of space research, CMEs, which are widely believed to be the most important phenomenon of the space environment, is discussed in many papers. Other papers show results of observational and theoretical studies toward better understanding of the complicated image of the magnetic coupling between the Sun and the Earth, although little is still known little its physical background. Space weather prediction, which is very important for a modern society expanding into out-space, is another hot topic of space research. However, a long way is still to go to predict exactly when and where a disaster will happen in the space. In that sense, there is much to do for space environment exploration and monitoring. The manuscripts submitted to this Monograph are divided into the following parts: (1) solar surface magnetism, (2) solar magnetic activity, (3) dynamical response of the heliosphere, (4) space environment exploration and monitoring; and (5) space weather prediction. Papers presented in this meeting but not submitted to this Monograph are listed by title as unpublished papers at the end of this book.
Solar And Stellar Magnetic Fields Iau S354
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Author : Alexander G. Kosovichev
language : en
Publisher: Cambridge University Press
Release Date : 2020-10-31
Solar And Stellar Magnetic Fields Iau S354 written by Alexander G. Kosovichev 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 2020-10-31 with Science categories.
Recent observational results from space- and ground-based telescopes have demonstrated that a unified approach to the relationships between solar and stellar magnetism is necessary to advance our understanding of magnetic fields. The Proceedings of IAU Symposium 354 present recent results and discussions of emerging topics, including: magnetic field diagnostics using high-resolution observation; initial data from ALMA, Chinese Radio Spectroheliograph and other instruments; the detection of stellar magnetospheres; and the detailed mapping of magnetic fields on the surface of stars using new unique instrumentation. These observations stimulate comparisons of solar and stellar results, and improve our understanding of how surface magnetic structures and their evolution are related to the generation of magnetic fields by dynamos in solar and stellar interiors. This volume benefits graduate students and researchers interested in the recent advances and key problems of solar and stellar magnetic fields, and their impacts on planetary atmospheres.
Origins Of Solar Activity
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Author :
language : en
Publisher:
Release Date : 1996
Origins Of Solar Activity written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Work under the subject grant began in August 1992, when Mr. J.J. Blanchette began study and data analysis in the area of solar flare research. Mr. Blanchette passed all requirements toward a Ph. D., except for the thesis. Mr. Blanchette worked with the APL Flare Genesis Experiment team to build a balloon-borne solar vector magnetograph. Other work on the magnetograph was partially supported by AFOSR grant F49620-94-1-0079. Mr. Blanchette assisted the Flare Genesis team prepare the telescope and focal plane optical elements for a test flight. He participated in instrument integration and in launch preparations for the flight, which took place on January 23, 1994. Mr. Blanchette was awarded a Masters Degree in Astrophysics by the Johns Hopkins University in recognition of his achievements. Mr. Blanchette indicated a desire to suspend work on the Ph. D. degree, and he left the AASERT program on August 31, 1994. Under the guidance of his advisor at JHU/APL, Dr. David M. Rust, Mr. Blanchette gained enough background in solar physics so that he can contribute to observational, analytical, and presentation efforts in solar research. Beginning in August 1995, Mr. Ashok Kumar was supported by the grant. Mr. Kumar demonstrated remarkable theoretical insight into the problems of solar activity. He developed the concept of intrinsic scale magnetic flux ropes in the solar atmosphere and interplanetary space. His model can explain the heating of interplanetary magnetic clouds. Recently, his idea has been extended to explain solar wind heating. If the idea is confirmed by further comparison with observations, it will be a major breakthrough in space physics and it may lead to an explanation for why the solar corona's temperature is over a million degrees.