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BOOK EXCERPT:
Analyses of photometric time series obtained from the MOST, CoRoT and Kepler space missions were presented at the 20th conference on Stellar Pulsations (Granada, September 2011). These results are leading to a re-appraisal of our views on stellar pulsation in some stars and posing some new and unexpected challenges. The very important and exciting role played by innovative ground-based observational techniques, such as interferometric measurements of giant pulsating stars and high-resolution spectroscopy in the near infrared, is also discussed. These Proceedings are distinguished by the format of the conference, which brings together a variety of related but different topics not found in other meetings of this nature.
Product Details :
Genre |
: Science |
Author |
: J.C. Suárez |
Publisher |
: Springer Science & Business Media |
Release |
: 2012-10-20 |
File |
: 285 Pages |
ISBN-13 |
: 9783642296307 |
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BOOK EXCERPT:
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.
Product Details :
Genre |
: Science |
Author |
: J. Robert Buchler |
Publisher |
: Springer Science & Business Media |
Release |
: 2012-12-06 |
File |
: 372 Pages |
ISBN-13 |
: 9789400905191 |
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BOOK EXCERPT:
Stellar pulsations provide a complex system in stars. This complexity is studied by analyzing the non-sinusoidal, semi-regular, or irregular light curves. This unique volume summarizes the application of recent theoretical results obtained from stellar pulsation studies. In addition, the latest developments in hydrodynamic simulations are discussed. A historical sketch of the study of beat Cepheids, first known for their variable amplitudes, is given as an introduction to the book. This introduction clearly demonstrates how complicated the study of variable stars can be, and therefore challenges and invites the reader to study the entire book.
Product Details :
Genre |
: Science |
Author |
: Mine Takeuti |
Publisher |
: Springer Science & Business Media |
Release |
: 2013-03-09 |
File |
: 237 Pages |
ISBN-13 |
: 9789401596985 |
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BOOK EXCERPT:
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.
Product Details :
Genre |
: Science |
Author |
: James M. Nemec |
Publisher |
: Cambridge University Press |
Release |
: 1993-10-21 |
File |
: 474 Pages |
ISBN-13 |
: 0521443822 |
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BOOK EXCERPT:
The nonlinear theory of oscillating systems brings new aspects into the study of variable stars. Beyond the comparison of linear periods and the estimate of stability, the appearance and disappearance of possible modes can be studied in detail. While nonlinearity in stellar pulsations is not a very complicated concept, it generally requires extensive and sometimes so phisticated numerical studies. Therefore, the development of appropriate computational tools is required for applications of nonlinear theory to real phenomena in variable stars. Taking trends in variable star studies into consideration, the International Astronomical Union organized a colloquium for the nonlinear phenomena of variable stars at Mito, Japan in 1992. The colloquium served to give an overview of the new frontiers of variable star studies and to encourage further development of this field. The colloquium covered the fundamental theory, interesting observational facts, and the numerical modeling. The publication of the proceedings was somewhat delayed since one of the editors, M. T., was overwhelmed by administrative work. We are sorry that the excellent reviews of Drs. H. :Mori, M. Sano, and K. Makishima cannot be found in the proceedings. We also miss the summary given by Dr. W. W. Dziembowski. Throughout the editing procedure Dr. Y. Tanaka of Ibaraki University kindly helped us. Because of the unfortunate delay of the publication~ the significance of several papers may be affected. Even so, we believe that the papers are useful to variable star researchers because of their scientific importance.
Product Details :
Genre |
: Science |
Author |
: Mine Takeuti |
Publisher |
: Springer Science & Business Media |
Release |
: 2012-12-06 |
File |
: 344 Pages |
ISBN-13 |
: 9789401110624 |
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BOOK EXCERPT:
Proceedings of a June 1997 conference, with sessions organized around unifying physics issues. Topics include connections between evolution and pulsation, linear theory of radial and nonradial pulsation, spectral and photometric variability, nonlinear pulsation theory, opacities and the equation of state, pulsation and convection interactions, new observing techniques, mass loss and envelope instabilities, driving mechanisms and mode selection, and helio- and asteroseismology. Annotation copyrighted by Book News, Inc., Portland, OR
Product Details :
Genre |
: Science |
Author |
: P. A. Bradley |
Publisher |
: |
Release |
: 1998 |
File |
: 560 Pages |
ISBN-13 |
: UOM:39015042177074 |
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BOOK EXCERPT:
Product Details :
Genre |
: Astronomy |
Author |
: Conny Aerts |
Publisher |
: |
Release |
: 2002 |
File |
: 728 Pages |
ISBN-13 |
: UOM:39015051556911 |
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BOOK EXCERPT:
Product Details :
Genre |
: Science |
Author |
: R. S. Stobie |
Publisher |
: |
Release |
: 1995 |
File |
: 504 Pages |
ISBN-13 |
: UOM:39015037269084 |
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BOOK EXCERPT:
Product Details :
Genre |
: Science |
Author |
: Carla Cacciari |
Publisher |
: |
Release |
: 1990 |
File |
: 632 Pages |
ISBN-13 |
: UOM:39015019481640 |
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BOOK EXCERPT:
Product Details :
Genre |
: Cepheids |
Author |
: David Fischel |
Publisher |
: |
Release |
: 1980 |
File |
: 716 Pages |
ISBN-13 |
: UIUC:30112106562298 |