Nonlinear Phenomena in Stellar Variability

Nonlinear Phenomena in Stellar Variability PDF Author: Mine Takeuti
Publisher: Springer Science & Business Media
ISBN: 940111062X
Category : Science
Languages : en
Pages : 344

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Book Description
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.

Nonlinear Phenomena in Stellar Variability

Nonlinear Phenomena in Stellar Variability PDF Author: Mine Takeuti
Publisher: Springer Science & Business Media
ISBN: 940111062X
Category : Science
Languages : en
Pages : 344

Get Book Here

Book Description
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.

New Perspectives on Stellar Pulsation and Pulsating Variable Stars

New Perspectives on Stellar Pulsation and Pulsating Variable Stars PDF 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.

Proceedings Of The 4th Experimental Chaos Conference

Proceedings Of The 4th Experimental Chaos Conference PDF Author: William L Ditto
Publisher: World Scientific
ISBN: 9814544051
Category :
Languages : en
Pages : 490

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Book Description
The 4th Experimental Chaos Conference was a forum for members of the scientific and engineering communities to discuss recent developments in, and techniques of, experimental nonlinear dynamics. The focus of this important conference was on actual realizations of nonlinear and chaotic systems. The latest developments in applications of nonlinear dynamics and chaos were presented, the requirement being that all presentations were actually implemented in experiments or devices. The areas covered were spatio-temporal patterns, optical chaos, biological dynamics, communication and synchronization, control of chaotic systems, mechanical dynamics, fluid dynamics, quantum chaos, and chaotic condensed matter systems.

Mass-Losing Pulsating Stars and their Circumstellar Matter

Mass-Losing Pulsating Stars and their Circumstellar Matter PDF Author: Y. Nakada
Publisher: Springer Science & Business Media
ISBN: 9401001391
Category : Science
Languages : en
Pages : 427

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Book Description
Editing the proceedings of a scientific meeting is not an easy task. Sometimes people who give an excellent talk do not send the manuscript by the deadline. However, this time, thanks to the punctuality of all the participants, we have this excellent volume for the workshop on mass losing pulsating stars and their circumstellar matter prepared in time. Almost all of the oral presentations including the summary are collected in this volume. We regret that we cannot put in this volume a few posters that we failed to receive before the editorial work. The workshop was planned as a small meeting with less than fifty attendants because the city of Sendai was far from the most of the active institutions. However, the number of submitted papers exceeded the SOC's expectation; many interesting contributions had to be scheduled in the poster session. Still, the oral sessions were so tight that many participants might have felt frustrated for the shortage of discussions. The organizers of the workshop have to apologize to the attendants for the inconvenience caused from such a happy underestimate about the size of the workshop.

Physics Briefs

Physics Briefs PDF Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 1224

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Book Description


Variables Stars and the Astrophysical Returns of the Microlensing Surveys

Variables Stars and the Astrophysical Returns of the Microlensing Surveys PDF Author: Roger Ferlet
Publisher: Atlantica Séguier Frontières
ISBN: 9782863322154
Category : Astrophysics
Languages : en
Pages : 496

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Book Description


A Half Century of Stellar Pulsation Interpretations

A Half Century of Stellar Pulsation Interpretations PDF Author: P. A. Bradley
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 560

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Book Description
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

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704

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Book Description


Pulsating Stars

Pulsating Stars PDF Author: Márcio Catelan
Publisher: John Wiley & Sons
ISBN: 3527655204
Category : Science
Languages : en
Pages : 500

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Book Description
This book surveys our understanding of stars which change in brightness because they pulsate. Pulsating variable stars are keys to distance scales inside and beyond the Milky Way galaxy. They test our understanding not only of stellar pulsation theory but also of stellar structure and evolution theory. Moreover, pulsating stars are important probes of the formation and evolution of our own and neighboring galaxies. Our understanding of pulsating stars has greatly increased in recent years as large-scale surveys of pulsating stars in the Milky Way and other Local Group galaxies have provided a wealth of new observations and as space-based instruments have studied particular pulsating stars in unprecedented detail.

Cellular Automata: Prospects In Astrophysical Applications - Proceedings Of The Workshop On Cellular Automata Models For Astrophysical Phenomena

Cellular Automata: Prospects In Astrophysical Applications - Proceedings Of The Workshop On Cellular Automata Models For Astrophysical Phenomena PDF 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.