Mass Losing Pulsating Stars And Their Circumstellar Matter
DOWNLOAD
Download Mass Losing Pulsating Stars And Their Circumstellar Matter PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Mass Losing Pulsating Stars And Their Circumstellar Matter book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Pulsation And Mass Loss In Stars
DOWNLOAD
Author : R. Stalio
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Pulsation And Mass Loss In Stars written by R. Stalio and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Stellar mass loss is an essential part of the cycling of material from the interstellar medium into stars and back, and must be understood if we are to model processes on galactic to cosmological scales. The study of stellar winds and the effects of stellar mass loss has reached a particularly exciting stage where observational capabilities are increasingly able to provide interesting constraints on models and theories. Recent resu1ts from theoretical and observational work for both hot and cool stars with substantial winds have led to the suggestion that a combination of pulsation with other mechanisms makes for particularly efficient mass loss from stars. This provided the original motivation for the organization of this workshop. The conference was organized along relatively conventional lines according to the types of objects being scrutinized. However the true unity of the proceedings comes from the interplay of the mechanisms involved. For example, for the cool, luminous Mira variables, pulsation leads to shock waves that extend the atmosphere, enhancing dust formation; radiation pressure on dust drives the wind, cooling the atmosphere and in some cases suppressing the shocks. Similarly for the Be stars, both pulsation (in this case, non-radial) and radiation pressure (due to UV resonance lines) are expected to be important, and this expectation is at least qualitatively borne out by the observations.
Pulsation Rotation And Mass Loss In Early Type Stars
DOWNLOAD
Author : Luis A. Balona
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Pulsation Rotation And Mass Loss In Early Type Stars written by Luis A. Balona and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
In this Symposium, researchers specializing in pulsation, rotation, magnetic fields and stellar winds are brought together for the first time in order to broaden our understanding of O and B stars. Thanks to advances in digital spectroscopy, new types of pulsating B stars have been discovered. The pulsations can be understood in terms of the recent revision of metal opacities, but the effects of rapid rotation and magnetic fields need further study. Observations in the UV and X-ray regions demonstrate that many B and Be stars show other activity, besides pulsation which is not yet understood. The reason for the enhanced mass loss in Be stars is a question which dominates the Symposium and which remains unanswered, although it is surely to be found in activity at or near the photosphere coupled with rotation. It is shown that the geometry of the circumstellar envelopes around Be stars is indeed a flattened disk as they can now be optically resolved. The variability of radiatively-driven winds from O and B stars are likely related to the rotation of the star. This underlines the central theme of the book: that the various phenomena seen in these stars cannot be studied in isolation.
Observing Variable Stars Novae And Supernovae
DOWNLOAD
Author : Gerald North
language : en
Publisher: Cambridge University Press
Release Date : 2004-10-28
Observing Variable Stars Novae And Supernovae written by Gerald North and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-10-28 with Nature categories.
This complete guide and resource package for all amateur astronomers from novice to advanced comes with a CD-ROM packed with resources including light-curves and hundreds of star finder charts. The text also offers advice on telescopes and the use of CCD photometry.
Integrable Problems Of Celestial Mechanics In Spaces Of Constant Curvature
DOWNLOAD
Author : T.G. Vozmischeva
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Integrable Problems Of Celestial Mechanics In Spaces Of Constant Curvature written by T.G. Vozmischeva and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.
Introd uction The problem of integrability or nonintegrability of dynamical systems is one of the central problems of mathematics and mechanics. Integrable cases are of considerable interest, since, by examining them, one can study general laws of behavior for the solutions of these systems. The classical approach to studying dynamical systems assumes a search for explicit formulas for the solutions of motion equations and then their analysis. This approach stimulated the development of new areas in mathematics, such as the al gebraic integration and the theory of elliptic and theta functions. In spite of this, the qualitative methods of studying dynamical systems are much actual. It was Poincare who founded the qualitative theory of differential equa tions. Poincare, working out qualitative methods, studied the problems of celestial mechanics and cosmology in which it is especially important to understand the behavior of trajectories of motion, i.e., the solutions of differential equations at infinite time. Namely, beginning from Poincare systems of equations (in connection with the study of the problems of ce lestial mechanics), the right-hand parts of which don't depend explicitly on the independent variable of time, i.e., dynamical systems, are studied.
Nonequilibrium Phenomena In Plasmas
DOWNLOAD
Author : A. Surjalal Sharma
language : en
Publisher: Springer Science & Business Media
Release Date : 2005-05-10
Nonequilibrium Phenomena In Plasmas written by A. Surjalal Sharma and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-05-10 with Science categories.
This book presents studies of complexity in the context of nonequilibrium phenomena using theory, modeling, simulations, and experiments, both in the laboratory and in nature.
Iso Science Legacy
DOWNLOAD
Author : Catherine J. Cesarsky
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-01-17
Iso Science Legacy written by Catherine J. Cesarsky and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-01-17 with Science categories.
This book recounts results obtained via the Infrared Space Observatory (ISO) on comets, in the close environment of pre-main sequence stars, in the interstellar medium, and in the final stages of stellar life, using molecular hydrogen, ubiquitous crystalline silicates, water and ices. ISO has enabled investigation of the fuelling mechanism of galaxies, and new understanding of luminous infrared galaxies and their role in shaping present galaxies and in producing the cosmic infrared background.
Polarization In Spectral Lines
DOWNLOAD
Author : M. Landi Degl'Innocenti
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-05-17
Polarization In Spectral Lines written by M. Landi Degl'Innocenti and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-05-17 with Science categories.
The scientific research based on spectropolarimetric techniques is undergoing a phase of rapid growth. Instruments of unprecedented sensitivity are nowadays available, particularly for solar observations. To fully exploit the rich diagnostic content of such observations, it is necessary to understand the physical mechanisms involved in the generation and transfer of polarized radiation in astrophysical (or laboratory) plasmas. After an introductory part based on classical physics, this book tackles the subject by a rigorous quantum-mechanical approach. The transfer equations for polarized radiation and the statistical equilibrium equations for the atomic density matrix are derived directly from the principles of Quantum Electrodynamics. The two sets of equations are then used to present a number of applications, mainly concerning the diagnostics of solar magnetic fields. This book is primarily addressed to scientists working in the field of spectropolarimetry. It may also serve as a textbook for a course at the graduate or advanced undergraduate level.
Scientific Detectors For Astronomy
DOWNLOAD
Author : P. Amico
language : en
Publisher: Springer Science & Business Media
Release Date : 2004-02-29
Scientific Detectors For Astronomy written by P. Amico and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-02-29 with Science categories.
These proceedings are from the fifth workshop of a series that concentrated on optical CCDs for the first four installments. At this workshop, for the first time, our "bandpass" was broadened to include infrared detectors. Every leading manufacturer, all major astronomical observatories and the experts in the field gathered on the Big Island of Hawaii for a week long workshop dedicated to scientific detectors for astronomy. This book captures the spirit of a unique event that was both an intensive exchange of technical information and a very friendly gathering of a cooperative community. The state-of-the-art papers include the latest technologies from detector manufacturers, observatory plans, instrumentation applications, electronics, extremely large focal planes, testing techniques and space missions.
The Impact Of Long Term Monitoring On Variable Star Research
DOWNLOAD
Author : C. Sterken
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Impact Of Long Term Monitoring On Variable Star Research written by C. Sterken and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Long-term monitoring is of fundamental significance in solving many important problems in astrophysics and, furthermore, has unequalled value in extending observational runs with small telescopes for the education of young astronomers in order to teach them how to secure high-quality observational data over many years. The Impact of Long-Term Monitoring on Variable Star Research contains reports based on the analysis of data collected in the visible, IR and radio measurement ranges, as well as the design and history of well known photometric systems. Though the reporting of novel results forms an important part of the book, there are also reports of eight discussion sessions covering more general areas, such as extinction monitoring, the problems of archival storage of astronomical data, service observation, the role played by long-term monitoring in graduate teaching and thesis supervision, the interplay between the great observational effort and theory, the contribution of LTM to new knowledge of fundamental data, and the increasing decommissioning of telescopes of modest aperture.
Astrochemistry Recent Successes And Current Challenges Iau S231
DOWNLOAD
Author : International Astronomical Union. Symposium
language : en
Publisher: Cambridge University Press
Release Date : 2006-04-27
Astrochemistry Recent Successes And Current Challenges Iau S231 written by International Astronomical Union. Symposium and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-04-27 with Science categories.
An up-to-date survey of astrochemistry in the early years of the twenty-first century. For researchers and graduate students.