MHD Wave Coupling in the Solar Atmosphere
Author | : Simon J. White |
Publisher | : |
Total Pages | : 0 |
Release | : 2023 |
Genre | : Magnetohydrodynamic waves |
ISBN | : |
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Author | : Simon J. White |
Publisher | : |
Total Pages | : 0 |
Release | : 2023 |
Genre | : Magnetohydrodynamic waves |
ISBN | : |
Author | : Aishawnnya Sharma |
Publisher | : A.K. Publications |
Total Pages | : 0 |
Release | : 2022-12-22 |
Genre | : |
ISBN | : 9786371085846 |
From the dawn of human civilisations, Sun has played a crucial role in the wonderland of the human mind. It has been perceived as a powerful deity in the mythology of many civilisations because of its role in providing the life on Earth. Today, we know that it is an ordinary star, which is centred at our solar system. It bears more than 99% mass of the solar system and holds all the planets in the solar system together by its gravity. The Sun has formed 4.5 billion years ago from the collapse of a giant, rotating cloud of gas and dust, called the solar nebula. It is a Population I star that is rich in heavy elements, and formed from the remnants of the supernova explosion of a previous giant star. It is primarily composed of hydrogen (73%) and helium (25%) with a negligible amount of heavier elements such as oxygen, carbon, neon, silicon, magnesium and iron. The Sun is a main-sequence star with a spectral class of G2V. It is located at a distance of 1.496× 108 km (1 AU) from the Earth and has a radius of 696,342 ± 65 km, which is about 109 times the radius of the Earth. The mass of Sun is 1.9885 × 1030 kg, and its luminosity is 3.86 × 1026 W. The solar spectrum can be approximated by blackbody radiation with a temperature of 5785 K, that corresponds to the effective surface temperature of the Sun . The study of the Sun can be divided into two parts. The solar interior that is composed of the core, the radiative zone and the convective zone, and the solar atmosphere that includes the photosphere, the chromosphere, the transition region and the corona. Solar interior is primarily divided into three main regions based on energy generation and transfer processes. They are - the core, the radiative & the convective zone.
Author | : Tom Van Doorsselaere |
Publisher | : Frontiers Media SA |
Total Pages | : 170 |
Release | : 2020-02-27 |
Genre | : |
ISBN | : 2889635252 |
Author | : Abhishek Kumar Srivastava |
Publisher | : Frontiers Media SA |
Total Pages | : 93 |
Release | : 2021-12-21 |
Genre | : Science |
ISBN | : 2889718379 |
Author | : Bernard Roberts |
Publisher | : Cambridge University Press |
Total Pages | : 529 |
Release | : 2019-07-18 |
Genre | : Mathematics |
ISBN | : 1108427669 |
Develops a fresh mathematical approach to coronal seismology, explaining oscillatory phenomena by drawing upon original research and complex modelling techniques.
Author | : |
Publisher | : |
Total Pages | : 168 |
Release | : 2014 |
Genre | : Magnetohydrodynamic waves |
ISBN | : |
Author | : A.T.Y. Lui |
Publisher | : Elsevier |
Total Pages | : 527 |
Release | : 2005-07-06 |
Genre | : Science |
ISBN | : 008045769X |
Many approaches exist for scientific investigations and space research is no exception. The early approach during which each space plasma region within the Sun-Earth system was investigated separately with physics-based tools has now progressed to encompass investigations on coupling between these regions. Ample evidence now exists indicating the dynamic processes in these regions exhibit disturbances over a wide range of scales both in time and space. This new reckoning naturally leads to an emerging perspective of probing these natural phenomena with concepts and tools developed in modern statistical mechanics for physical processes governing the evolution of out-of-equilibrium and complex systems. These new developments have prompted a topical conference on Sun-Earth connection, held on February 9-13, 2004 at Kailua-Kona, Hawaii, USA, with the goal of promoting interactions among scientists practicing the traditional physics-based approach and those utilizing modern statistical techniques. This monograph is a product of this conference, a compilation of thirty-nine articles assembled into seven chapters: (1) multiscale features in complexity dynamics, (2) space storms, (3) magnetospheric substorms, (4) turbulence and magnetic reconnection, (5) modeling and coupling of space phenomena, (6) techniques for multiscale space plasma problems, and (7) present and future multiscale space missions. These articles show a diversity of space phenomena exhibiting scale free characteristics, intermittency, and non-Gaussian distributions of probability density function of fluctuations in the physical parameters of the Sun-Earth system. The scope covers the latest observations, theories, simulations, and techniques on the multiscale nature of Sun-Earth phenomena and underscores the usefulness in cross-disciplinary exchange needed to unravel the underlying physical processes, which may eventually lead to a possible unified description and prediction for space disturbances. * Extensive collection of state-of-the-art papers on multiscale coupling of Sun-Earth Processes * Present and future multiscale space missions * New techniques and models for performing multiscale analysis
Author | : International Astronomical Union. Symposium |
Publisher | : Cambridge University Press |
Total Pages | : 404 |
Release | : 2008-06-12 |
Genre | : Science |
ISBN | : 9780521874694 |
Provides the latest summary on the solar coronal heating enigma and magneto-seismology of the solar atmosphere, for solar physics researchers.
Author | : S.S. Hasan |
Publisher | : Springer Science & Business Media |
Total Pages | : 561 |
Release | : 2010-03-10 |
Genre | : Science |
ISBN | : 3642028594 |
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.
Author | : Cheryl Ann Mundie |
Publisher | : |
Total Pages | : 231 |
Release | : 1998 |
Genre | : |
ISBN | : |