Read and Download eBook Full
Author: Günther Rüdiger
Publisher: Taylor & Francis
Published: 1989
Total Pages: 332
ISBN-13: 9782881240669
DOWNLOAD EBOOKFirst Published in 1989. Routledge is an imprint of Taylor & Francis, an informa company.
Author: D. W. Hughes
Publisher: Cambridge University Press
Published: 2007-05-31
Total Pages: 369
ISBN-13: 113946258X
DOWNLOAD EBOOKHelioseismology has enabled us to probe the internal structure and dynamics of the Sun, including how its rotation varies in the solar interior. The unexpected discovery of an abrupt transition - the tachocline - between the differentially rotating convection zone and the uniformly rotating radiative interior has generated considerable interest and raised many fundamental issues. This volume contains invited reviews from distinguished speakers at the first meeting devoted to the tachocline, held at the Isaac Newton Institute. It provides a comprehensive account of the understanding of the properties and dynamics of the tachocline, including both observational results and major theoretical issues, involving both hydrodynamic and magnetohydrodynamic behaviour. The Solar Tachocline is a valuable reference for researchers and graduate students in astrophysics, heliospheric physics and geophysics, and the dynamics of fluids and plasmas.
Author: Mariejo Goupil
Publisher: Springer
Published: 2012-12-15
Total Pages: 265
ISBN-13: 364233380X
DOWNLOAD EBOOKThis 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.
Author: John J. Eldridge
Publisher: World Scientific Publishing Company Incorporated
Published: 2019
Total Pages: 338
ISBN-13: 9781783265800
DOWNLOAD EBOOKStars are the fundamental observable constituents of the Universe. They are the first objects we see in the night sky, dominate the light produced in our own and other galaxies and nucleosynthesis in stars produces all the elements heavier than helium. A knowledge of stars and their evolution is vital in understanding other astrophysical objects from accreting black holes and galaxies to the Universe itself. The structure of a star can be described mathematically by differential equations which can be derived from the principles of hydrodynamics, electromagnetic theory, thermodynamics, quantum mechanics, and atomic and nuclear physics. The basic equations of a spherical star are derived in detail, the modes of energy transport, the equation of state, the physics of the opacity sources and the nuclear reactions are explained. Approximate solutions of the equations for stellar structure are given. Attention is given to the virial theorem, polytropic gas spheres and homology principles. The procedure for numerical solution of the equations is outlined. The evolution of a star is described from its main sequence evolution through the exhaustion of various nuclear fuels to the end points of evolution such as white dwarfs, neutron stars and black holes. Supernova explosions as the deaths of massive stars along with the nucleosynthesis of elements within stars are explained.
Author: Roger John Tayler
Publisher: Taylor & Francis Group
Published: 1992
Total Pages: 356
ISBN-13: 9780750302005
DOWNLOAD EBOOKStellar Astrophysics contains a selection of high-quality papers that illustrate the progress made in research into the structure and evolution of stars. Senior undergraduates, graduates, and researchers can now be brought thoroughly up to date in this exciting and ever-developing branch of astronomy.
Author: Günther Rüdiger
Publisher: John Wiley & Sons
Published: 2006-03-06
Total Pages: 343
ISBN-13: 3527605002
DOWNLOAD EBOOKMagnetism is one of the most pervasive features of the Universe, with planets, stars and entire galaxies all having associated magnetic fields. All of these fields are generated by the motion of electrically conducting fluids, the so-called dynamo effect. The precise details of what drives the motion, and indeed what the fluid consists of, differ widely though. In this work the authors draw upon their expertise in geophysical and astrophysical MHD to explore some of these phenomena, and describe the similarities and differences between different magnetized objects. They also explain why magnetic fields are crucial in the formation of the stars, and discuss promising experiments currently being designed to study some of the relevant physics in the laboratory. This interdisciplinary approach makes the book appealing to a wide audience in physics, astrophysics and geophysics.
Author: International Astronomical Union. Symposium
Publisher: Cambridge University Press
Published: 2007-06-07
Total Pages: 552
ISBN-13: 9780521863490
DOWNLOAD EBOOKConvection is ubiquitous throughout the Universe, and during the last three decades it has become the largest factor of uncertainty in theoretical models of stars and in the interpretation of observations on the basis of such models. Recently, numerical simulations of convection have dramatically improved in their potential to take into account both the large scale properties of the flow itself and the microphysical properties of the fluid. Observations have become accurate enough to provide stringent tests for both numerical simulations and models of convection. IAU S239 was held to further understanding of convection, bringing together leading researchers in solar and stellar physics, the physics of planets, and of accretion disks. With reviews, research contributions, and detailed recordings of plenary discussions, this book is a valuable resource for professional astronomers and graduate students interested in the interdisciplinary study of one of the key physical processes in astrophysics.
Author: Günther Rüdiger
Publisher: John Wiley & Sons
Published: 2013-12-02
Total Pages: 373
ISBN-13: 3527648941
DOWNLOAD EBOOKIn this work the authors draw upon their expertise in geophysical and astrophysical MHD to explore the motion of electrically conducting fluids, the so-called dynamo effect, and describe the similarities and differences between different magnetized objects. They also explain why magnetic fields are crucial to the formation of the stars, and discuss promising experiments currently being designed to investigate some of the relevant physics in the laboratory. This interdisciplinary approach will appeal to a wide audience in physics, astrophysics and geophysics. This second edition covers such additional topics as small-scale dynamos, while also presenting the latest results and experiments.
Author: Jean-Pierre Rozelot
Publisher: Springer Science & Business Media
Published: 2009-01-08
Total Pages: 266
ISBN-13: 3540878300
DOWNLOAD EBOOKThe Sun and stars rotate in di?erent ways and at di?erent velocity rates. The knowledge of how they rotate is important in understanding the formation and evolution of stars and their structure. The closest star to our Earth, the Sun, is a good laboratory to study in detail the rotation of a G star and allows to test new ideas and develop new techniques to study stellar rotation. More or less massive, more or lessevolved objects, however, can have averydi?erent rotation rate, structure and history. In recent years our understanding of the rotation of the Sun has greatly improved. The Sun has a well-known large-scale rotation, which can be m- sured thanks to visible features across the solar disk, such as sunspots, or via spectroscopy. In addition, several studies cast light on di?erential rotation in the convective zone and on meridional circulation in the radiative zone of the Sun. Even the rotation of the core of the Sun can now be studied thanks to various methods, such as dynamics of the gravitational moments and of course, helioseismology, through g-modes analysis. Moreover, the magnetic ?eld is strongly linked to the matter motions in the solar plasma. The solar magnetic ?eld can be measured only at the surface or in theupperlayers.Itistheproductoftheinternaldynamoorofthelocaldynamos if they exist – in any case magnetic ?eld and rotation cannot thus be separated.
Author: M. W. Guidry
Publisher: Cambridge University Press
Published: 2019-02-07
Total Pages: 573
ISBN-13: 1107197880
DOWNLOAD EBOOKPresents the physics of stars in relation to modern topics such as neutrino oscillations, supernovae, black holes, and gravitational waves.
