Author: J. Robert Buchler
Publisher: Springer Science & Business Media
ISBN: 940090519X
Category : Science
Languages : en
Pages : 372
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Book Description
This interdisciplinary meeting has brought together a group of astrophysicists with hands-on experience in the numerical computation of astrophysical fluid dynamics, in particular nonlinear stellar pulsations, and a group of applied mathematicians who are actively engaged with the development of novel and improved numerical methods. The goal of the workshop has been for the astrophysicists to discuss in detail the numerical problems encountered in the modelling of stellar pulsations and for the mathematicians to present a survey of recent developments in numerical techniques. This astrophysical-mathematical intercourse will help the astrophysicists in the future development of more reliable and efficient codes, on the one hand, and it has introduced the mathematicians to an unfamiliar area which is a tough testing ground for their techniques. Since the difficulties encountered are common to other fluid dynamics problems, and are in fact perhaps more severe, fluid dynamicists in other research areas may fmd the results of this workshop of interest as well. Much of our theoretical understanding of the intricate and interesting behavior of variable stars rests on our ability to perform accurate numerical hydrodynamical computations of stellar models. Extensive calculations of nonlinear radial stellar pulsations with the use of increasingly powerful computers are showing more and more clearly that the numerical codes in current use have serious deficiencies.
Author: A. Balogh
Publisher: Springer Science & Business Media
ISBN: 0387775390
Category : Science
Languages : en
Pages : 460
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Book Description
This fascinating book reviews the progress made in Mercury studies since the flybys by Mariner 10 in 1974-75. Thus far, it is the only book on Mercury which balances a wide range of Earth-based observations, made under difficult conditions, with the only available space-based data. The text is based on continued research using the Mariner 10 archive, on observations from Earth, and on increasingly realistic models of this mysterious planet’s interior evolution.
Author: James M. Nemec
Publisher: Cambridge University Press
ISBN: 9780521443821
Category : Science
Languages : en
Pages : 474
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Book Description
How can the interior of the Sun, white dwarfs and other stars be studied by stellar seismology? What can Doppler imaging tell us about high-degree pulsations? What impact are CCD and infrared observations having on extending the Cepheid and RR Lyrae distance scale? And how are other classes of pulsators providing independent checks of the distance scale? These and many other critical questions are answered in this timely review of the dramatic advances made in pulsating star research in the last decade. This survey collects together more than thirty comprehensive reviews and over one hundred summaries of research papers from the 139th IAU Colloquium, held in Victoria, British Columbia. Together these cover all aspects of recent developments in the field of variable star research and preview some of the exciting advances anticipated for the next decade. This volume provides an essential review for graduate students and researchers.
Author: International Astronomical Union. Symposium
Publisher: Cambridge University Press
ISBN: 9780521874724
Category : Science
Languages : en
Pages : 616
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Book Description
Reviews our current understanding of the life, evolution and death of massive stars; for researchers and graduate students.
Author: Randall J. LeVeque
Publisher: Springer Science & Business Media
ISBN: 3540316329
Category : Science
Languages : en
Pages : 523
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Book Description
This book leads directly to the most modern numerical techniques for compressible fluid flow, with special consideration given to astrophysical applications. Emphasis is put on high-resolution shock-capturing finite-volume schemes based on Riemann solvers. The applications of such schemes, in particular the PPM method, are given and include large-scale simulations of supernova explosions by core collapse and thermonuclear burning and astrophysical jets. Parts two and three treat radiation hydrodynamics. The power of adaptive (moving) grids is demonstrated with a number of stellar-physical simulations showing very crispy shock-front structures.
Author: Lejeune A
Publisher: World Scientific
ISBN: 9814553212
Category :
Languages : en
Pages : 416
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Book Description
This book provides a survey of the basic ideas of the cellular automaton (CA) modelling environment, emphasising the relevance of this framework to astrophysical applications. It contains introductory level lectures on lattice gases, and on CA turbulence, diffusion-reaction processes, percolation and self-organised criticality. Further, it gives a variety of astrophysical applications, including stellar oscillations, galactic evolution, distribution of luminous matter in the universe, etc.
Author: Hans-Peter Gail
Publisher: Cambridge University Press
ISBN: 0521833795
Category : Science
Languages : en
Pages : 699
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Book Description
This book explores why dust forms around stars, and how to model stellar dust formation and dust-forming environments consistently.
Author: Edith Falgarone
Publisher: Springer
ISBN: 354036238X
Category : Science
Languages : en
Pages : 466
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Book Description
This book contains review articles of most of the topics addressed at the conf- ence on Simulations of Magnetohydrodynamic turbulence in astrophysics: recent achievements and perspectives which took place from July 2 to 6, 2001 at the Institut Henri Poincar ́e in Paris. We made the choice to publish these lectures in a tutorial form so that they can be read by a broad audience. As a result, this book does not give an exhaustive view of all the subjects addressed during the conference. The main objective of this workshop which gathered about 90 scientists from di?erent ?elds, was to present and confront recent results on the topic of t- bulence in magnetized astrophysical environments. A second objective was to discuss the latest generation of numerical codes, such as those using adaptive mesh re?nement (AMR) techniques. During a plenary discussion at the end of the workshop discussions were held on several topics, often at the heart of vivid controversies. Topics included the timescale for the dissipation of magneto-hydrodynamical (MHD) turbulence, the role of boundary conditions, the characteristics of imbalanced turbulence, the validity of the polytropic approach to Alfv ́en waves support within interst- lar clouds, the source of turbulence inside clouds devoid of stellar activity, the timescale for star formation, the Alfv ́en Mach number of interstellar gas motions, the formation process for helical ?elds in the interstellar medium. The impact of small upon large scales was also discussed.
Author: International Astronomical Union. Symposium
Publisher: Springer Science & Business Media
ISBN: 9780792350606
Category : Science
Languages : en
Pages : 556
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Book Description
Proceedings of the August 1997 symposium. One hundred and ninety- four contributions present comparative studies on the data of the Milky Way and central regions of nearby galaxies. Included is information on galactic bulges, galactic center star clusters, star formation, starbursts, neutral ISM in the galactic center, molecular gas in the nuclei of galaxies, gas dynamics in the galactic center, the central parsecs of the milky way, magnetic and high-energy phenomena, black holes in galaxies, black hole in the galactic center, and black hole powering of AGN and jets. A sampling of topics: diffraction-limited IR speckle masking observations of the central regions of Seyfert galaxies, the stellar content of the Quintuplet cluster, and the structural characteristics of spiral bulges. Annotation copyrighted by Book News, Inc., Portland, OR
Author: T. W. Hartquist
Publisher: Oxford University Press
ISBN: 9780198501589
Category : Galaxies
Languages : en
Pages : 562
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Book Description
This book provides a comprehensive survey of modern molecular astrophysics. It includes an introduction to molecular spectroscopy and then addresses the main areas of current molecular astrophysics, including galaxy formation, star forming regions, mass loss from young as well as highlyevolved stars and supernovae, starburst galaxies plus the tori and discs near the central engines of active galactic nuclei. All chapters have been written by invited authors who are acknowledged experts in their fields. The thorough editorial process has ensured a uniformly high standard ofexposition and a coherent style. The book is unique in giving a detailed view of its wide-ranging subject. It will provide the standard introduction for research students in molecular astrophysics. The book will be read by research astronomers and astrophysicists who wish to broaden the basis oftheir knowledge or are moving their activities into this burgeoning field. It will enable chemists to learn the astrophysics most related to chemistry as well as instruct physicists about the molecular processes most important in astronomy.
