Magnetic Coupling at Sun and Stars

Magnetic Coupling at Sun and Stars PDF Author: Jörg Büchner
Publisher:
ISBN:
Category : Solar magnetic fields
Languages : en
Pages : 134

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Book Description

Magnetic Coupling at Sun and Stars

Magnetic Coupling at Sun and Stars PDF Author: Jörg Büchner
Publisher:
ISBN:
Category : Solar magnetic fields
Languages : en
Pages : 134

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Book Description


Fragmented Energy Release in Sun and Stars

Fragmented Energy Release in Sun and Stars PDF Author: G.H.J. van den Oord
Publisher: Springer Science & Business Media
ISBN: 940111014X
Category : Science
Languages : en
Pages : 380

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Book Description
Magnetic energy release plays an important role in a wide variety of cosmic objects such as the Sun, stellar coronae, stellar and galactic accretion disks and pulsars. The observed radio, X-ray and gamma-ray emission often directly results from magnetic `flares', implying that these processes are spatially fragmented and of an impulsive nature. A true understanding of these processes requires a combined magnetohydrodynamical and plasma physical approach. Fragmented Energy Release in Sun and Stars: the Interface between MHD and Plasma Physics provides a comprehensive, interdisciplinary summary of magnetic energy release in the Sun and stars, in accretion disks, in pulsar magnetospheres and in laboratory plasmas. These proceedings include papers on both theoretical and observational aspects. Fragmented Energy Release in Sun and Stars: the Interface between MHD and Plasma Physics is for researchers in the fields of solar physics, stellar astrophysics and (laboratory) plasma physics and is a useful resource book for graduate level astrophysics courses.

Magnetic Coupling Between the Interior and Atmosphere of the Sun

Magnetic Coupling Between the Interior and Atmosphere of the Sun PDF Author: S. S. Hasan
Publisher: Springer
ISBN: 3642028608
Category : Science
Languages : en
Pages : 561

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Book Description
These are the proceedings of the conference on Magnetic Coupling between the Interior and the Atmosphere of the Sun held December 2-5, 2008, which was planned to coincide with the centenary of the discovery of the Evershed effect at Kodaikanal in 1909. The aim of this meeting was to bring a critical focus to the comprehensive understanding of the important issues pertaining to solar magnetism, with particular emphasis on the various MHD processes that operate in the solar atmosphere. The participants reviewed the current status of magnetic field measurements and their implications with regard to recent theories and numerical models that address the fundamental scales and processes in the highly magnetized, turbulent plasma. The conference also provided a platform for in-depth discussions of new results from various space missions, as well as a comparison with ground-based observing facilities such as the Swedish 1-m Solar Telescope.

Geology Applied to Engineering

Geology Applied to Engineering PDF Author: Terry R. West
Publisher: Waveland Press
ISBN: 1478637226
Category : Science
Languages : en
Pages : 576

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Book Description
Geology Applied to Engineering bridges the gap between the two fields through its versatile application of the physical aspects of geology to engineering design and construction. The Second Edition elucidates real-world practices, concerns, and issues for today’s engineering geologists and geotechnical engineers. Both undergraduate and graduate students will benefit from the book’s thorough coverage, as will professionals involved in assessing sites for engineering projects, evaluating construction materials, developing water resources, and conducting tests using industry standards. West and Shakoor offer expanded coverage of important topics such as slope stability and ground subsidence and significant fields in engineering geology, such as highways, dams, tunnels, and rock blasting. In order to allow for the diverse backgrounds of geologists and engineers, material on the properties of minerals, rocks, and soil provides a working knowledge of applied geology as a springboard to more comprehensive subjects in engineering. Example problems throughout the text demonstrate the practical applications of soil mechanics, rock weathering and soils, structural geology, groundwater, and geophysics. Thought-provoking and challenging exercises supplement core concepts such as determining shear strength and failure conditions, calculating the depth needed for borings, reading and analyzing maps, and constructing stratigraphic cross sections.

Basic Plasma Processes on the Sun

Basic Plasma Processes on the Sun PDF Author: E.R. Priest
Publisher: Springer Science & Business Media
ISBN: 9780792308799
Category : Science
Languages : en
Pages : 574

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Book Description
Much of the excitement in modern Solar Physics has come from the realisation that the Sun is a plasma and that this plasma is interacting with the magnetic field in a wide variety of subtle ways. As well as being of great interest in their own right the observed plasma phenomena on the Sun are of much wider importance, since they reveal to us details of basic phenomena that are expected to be occurring throughout the universe. It was with this in mind that 173 solar physicists from 17 countries gathered together in Bangalore with an air of anticipation. We were not disappointed as we received the warmest of welcomes from our graceful and charming host,Vinod Krishan. She and her colleagues worked tirelessly to make our stay a most memorable one and to ensure that the meeting ran with calm and efficiency. In addition to being stimulated by an excellent series of talks on the up-to-the minute advances in our subject, it was a pleasure to make new friendships from so many countries and to learn, in particular, of the Solar Physics being done in India which has a great tradition and is of a high standard. Furthermore, we enjoyed hearing about Indian culture and appreciating its beauty, especially on our day's tour into the countryside to visit some Hindu and Jain temples.

Magnetohydrodynanics in Binary Stars

Magnetohydrodynanics in Binary Stars PDF Author: C.G. Campbell
Publisher: Springer Science & Business Media
ISBN: 9781402003776
Category : Science
Languages : en
Pages : 324

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Book Description
Magnetic stresses were discussed as a possible means of angular momentum transport in the development of accretion disc theory, in the late sixties and early seventies. Interest in the role of magnetic fields in close binary stars steadily increased after the discovery of the nature of AM Herculis in 1976. The observed lack of an accretion disc and the synchronous rotation of the white dwarf suggested strong magnetic effects, consistent with the high degree of optical polarization. Similar systems were soon discovered. Evidence for large magnetic fields was subsequently found in the X-ray binary pulsars and the intermediate polar binaries, both believed to include systems with partially disrupted accretion discs. A magnetically channelled wind from the main sequence secondary star has been invoked to explain the higher mass transfer rates observed in binaries above the period gap, and in an explanation of the gap. Magnetically influenced winds from accretion discs have been suggested as contributing to the inflow by removing angular momentum. Magnetism in binary stars is now an area of central importance in stellar astrophysics. Magnetic fields are believed to playa fundamental role even in apparently non-magnetic binaries. They provide the most viable means, through shear instabilities, of generating the turbulence in accretion discs necessary to drive the inflow via the resulting magnetic and viscous stresses.

Heliophysics: Evolving Solar Activity and the Climates of Space and Earth

Heliophysics: Evolving Solar Activity and the Climates of Space and Earth PDF Author: Carolus J. Schrijver
Publisher: Cambridge University Press
ISBN: 1139489755
Category : Science
Languages : en
Pages :

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Book Description
Heliophysics is a fast-developing scientific discipline that integrates studies of the Sun's variability, the surrounding heliosphere, and the environment and climate of planets. Over the past few centuries, our understanding of how the Sun drives space weather and climate on the Earth and other planets has advanced at an ever increasing rate. This 2010 volume, the last in this series of three heliophysics texts, focuses on long-term variability from the Sun's decade-long sunspot cycle and considers the evolution of the planetary system over ten billion years from a climatological perspective. Topics covered range from the dynamo action of stars and planets to processes in the Earth's troposphere, ionosphere, and magnetosphere and their effects on planetary climate and habitability. Supplemented by online teaching materials, it can be used as a textbook for courses or as a foundational reference for researchers in fields from astrophysics and plasma physics to planetary and climate science.

Studying Stellar Rotation and Convection

Studying Stellar Rotation and Convection PDF Author: Mariejo Goupil
Publisher: Springer
ISBN: 364233380X
Category : Science
Languages : en
Pages : 261

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Book Description
This volume synthesizes the results of work carried out by several international teams of the SIROCO (Seismology for Rotation and Convection) collaboration. It provides the theoretical background required to interpret the huge quantity of high-quality observational data recently provided by space experiments such as CoRoT and Kepler. Asteroseismology allows astrophysicists to test, to model and to understand stellar structure and evolution as never before. The chapters in this book address the two groups of topics summarized as "Stellar Rotation and Associated Seismology" as well as "Stellar Convection and Associated Seismology". The book offers the reader solid theoretical background knowledge and adapted seismic diagnostic techniques.

Magnetic Coupling between the Interior and Atmosphere of the Sun

Magnetic Coupling between the Interior and Atmosphere of the Sun PDF Author: S.S. Hasan
Publisher: Springer Science & Business Media
ISBN: 3642028594
Category : Science
Languages : en
Pages : 538

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Book Description
Solar physics in India has a tradition that can be traced to the setting up of the Kodaikanal Observatory in 1899 when the Madras Observatory was relocated to a high altitude site with a view to initiate observations of the sun. This conference on Magnetic Coupling between the Interior and the Atmosphere of the Sun during 2–5 December 2008 was planned to coincide with centenary of the Evershed effect discovery at Kodaikanal in 1909. The aim of this meeting was to bring to a critical focus a comprehensive - derstanding of the important issues pertaining to solar magnetism with particular emphasis on the various MHD processes that operate in the solar atmosphere. The current status of magnetic eld measurements and their implications in the light of recenttheoriesandnumericalmodelingthataddressthe fundamentalscalesandp- cessesinthehighlymagnetizedturbulentplasmawerereviewedduringthismeeting. The meeting was timely for the following reasons: Space observations such as from SOHO and TRACE have provided a wealth of multiwavelength observations onprocessesoccurringinregionsofthe atmosphereextendingfromthe photosphere up to the outer corona. With the launch of Hinode and STEREO in 2006 and of SDO (Solar Dynamics Observatory) shortly, this conference provided a platform for in-depth discussions on new results from various space missions as well as a comparison with ground-based observing facilities such as the Swedish 1-m Solar Telescope. Using sophisticated image processing techniques, such telescopes r- tinelygenerateobservationswitharesolutionbetterthan0. 1arcsec,therebyyielding more informative diagnostics for instance of the microstructure of ux tubes.

Solar and Stellar Magnetic Activity

Solar and Stellar Magnetic Activity PDF Author: Carolus J. Schrijver
Publisher:
ISBN: 9780521582865
Category : Science
Languages : en
Pages : 384

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Book Description
The first comprehensive review and synthesis of current understanding of magnetic fields in the Sun and similar stars.