The Rotation of Sun and Stars

The Rotation of Sun and Stars
Author: Jean-Pierre Rozelot
Publisher: Springer Science & Business Media
Total Pages: 266
Release: 2009-01-08
Genre: Science
ISBN: 3540878300

The 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.

The Sun, the Earth, and Near-earth Space

The Sun, the Earth, and Near-earth Space
Author: John A. Eddy
Publisher: Government Printing Office
Total Pages: 316
Release: 2009
Genre: Business & Economics
ISBN: 9780160838088

" ... Concise explanations and descriptions - easily read and readily understood - of what we know of the chain of events and processes that connect the Sun to the Earth, with special emphasis on space weather and Sun-Climate."--Dear Reader.

Visual Astronomy

Visual Astronomy
Author: Panos Photinos
Publisher: Morgan & Claypool Publishers
Total Pages: 126
Release: 2014-04-01
Genre: Science
ISBN: 1627056815

Visual Astronomy introduces the basics of observational astronomy, a fundamentally limitless opportunity to learn about the universe with your unaided eyes or with tools such as binoculars, telescopes, or cameras. The book explains the essentials of time a

Sun, Moon and Stars

Sun, Moon and Stars
Author: Stephanie Turnbull
Publisher:
Total Pages: 32
Release: 2003
Genre: Solar system
ISBN: 9780746055847

This exploration of the sun, moon and stars is part of a series introducing children to the wonder of the world around them. It has two reading levels, with a simple sentence on each page for beginners, accompanied by more complex information which can be read as the child's ability grows.

An Introduction to the Sun and Stars

An Introduction to the Sun and Stars
Author: Simon F. Green
Publisher: Cambridge University Press
Total Pages: 400
Release: 2004-02-26
Genre: Science
ISBN: 9780521546225

Compiled by a team of experts, this textbook has been designed for elementary university courses in astronomy and astrophysics. It starts with a detailed discussion of our nearest star, the Sun, and describes how solar physicists have come to understand its internal workings. It then considers how astronomers go about studying the basic physical properties and life-cycles of more distant stars, and culminates with a discussion of the formation of exotic objects such as neutron stars and black holes. Written in an accessible style that avoids complex mathematics, and illustrated in colour throughout, this book is suitable for self-study and will appeal to amateur astronomers as well as undergraduate students. It contains numerous helpful learning features such as boxed summaries, student exercises with full solutions, and a glossary of terms. The book is also supported by a website hosting further teaching materials.

Physics, Formation and Evolution of Rotating Stars

Physics, Formation and Evolution of Rotating Stars
Author: Andre Maeder
Publisher: Springer Science & Business Media
Total Pages: 832
Release: 2008-12-19
Genre: Science
ISBN: 3540769498

Rotation is ubiquitous at each step of stellar evolution, from star formation to the final stages, and it affects the course of evolution, the timescales and nucleosynthesis. Stellar rotation is also an essential prerequisite for the occurrence of Gamma-Ray Bursts. In this book the author thoroughly examines the basic mechanical and thermal effects of rotation, their influence on mass loss by stellar winds, the effects of differential rotation and its associated instabilities, the relation with magnetic fields and the evolution of the internal and surface rotation. Further, he discusses the numerous observational signatures of rotational effects obtained from spectroscopy and interferometric observations, as well as from chemical abundance determinations, helioseismology and asteroseismology, etc. On an introductory level, this book presents in a didactical way the basic concepts of stellar structure and evolution in "track 1" chapters. The other more specialized chapters form an advanced course on the graduate level and will further serve as a valuable reference work for professional astrophysicists.

The Sun's Rotation

The Sun's Rotation
Author: J. Javaraiah
Publisher:
Total Pages: 200
Release: 2002
Genre: Science
ISBN:

Though the sun does not go around the Earth, still it does go around. Javaraiah and Gokhale (both Indian Institute of Astrophysics, Bangalore) team up with colleagues to summarize recent research findings on its rotation, the variations in the rotations, and physical processes in the Sun and its atmosphere that affect and are affected by the rotation. They consider the mean rotation and time dependence of the outer layers, and the rotation rate in the interior as determined by helioseismic studies.

A Question and Answer Guide to Astronomy

A Question and Answer Guide to Astronomy
Author: Pierre-Yves Bely
Publisher: Cambridge University Press
Total Pages: 361
Release: 2017-03-23
Genre: Science
ISBN: 131661526X

Contains 250 questions and answers about astronomy, particular for the amateur astronomer.

Theory of Rotating Stars

Theory of Rotating Stars
Author: Jean Louis Tassoul
Publisher:
Total Pages: 506
Release: 1978
Genre: Science
ISBN: 9780691082141

Ever since the first observations of sunspots in the early seventeenth century, stellar rotation has been a major topic in astronomy and astrophysics. Jean-Louis Tassoul synthesizes a large number of theoretical investigations on rotating stars. Drawing upon his own research, Professor Tassoul also carefully critiques various competing ideas. In the first three chapters, the author provides a short historical sketch of stellar rotation, the main observational data on the Sun and other stars on which the subsequent theory is based, and the basic Newtonian hydrodynamics used to study rotating stars. Following a discussion of some general mechanical properties of stars in a state of permanent rotation, he reviews the main techniques for determining the structure of a rotating star and its stability with respect to infinitesimal disturbances. Since the actual distribution of angular momentum within stars is still unknown, Professor Tassoul considers various models of angular momentum as well as of meridional circulation. He devotes the rest of his study to the problems concerning various groups of stars and stages in stellar evolution. Originally published in 1979. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.