Spectrographic Studies Of Eclipsing Binaries
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Spectrographic Studies Of Eclipsing Binaries
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Author : Dean B. McLaughlin
language : en
Publisher:
Release Date : 1941
Spectrographic Studies Of Eclipsing Binaries written by Dean B. McLaughlin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1941 with categories.
Spectrographic Studies Of Eclipsing Binaries
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Author : Dean Benjamin McLaughlin
language : en
Publisher:
Release Date : 1927
Spectrographic Studies Of Eclipsing Binaries written by Dean Benjamin McLaughlin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1927 with categories.
Eclipsing Binary Stars
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Author : Josef Kallrath
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Eclipsing Binary Stars written by Josef Kallrath 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 2013-11-11 with Science categories.
Focussing on the formulation of mathematical models for the light curves of eclipsing binary stars, and on the algorithms for generating such models, this book provides astronomers, both amateur and professional, with a guide for - specifying an astrophysical model for a set of observations - selecting an algorithm to determine the parameters of the model - estimating the errors of the parameters. It is written for readers with knowledge of basic calculus and linear algebra; appendices cover mathematical details on such matters as optimisation, co-ordinate systems, and specific models. While emphasising the physical and mathematical framework, the discussion remains close to the problems of actual implementation. The book concludes with chapters on specific models and approaches and the authors'views on the structure of future light-curve programs.
Modeling And Analysis Of Eclipsing Binary Stars
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Author : Andrej Prša
language : en
Publisher:
Release Date : 2018
Modeling And Analysis Of Eclipsing Binary Stars written by Andrej Prša and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Eclipsing binaries categories.
"The fascinating and observationally spectacular world of binary stars is a vast and beautiful one that is a significant aspect of many astrophysical studies. Modeling and Analysis of Eclipsing Binary Stars gives a comprehensive analysis and description of the science behind eclipsing binaries. It also explores the assumptions and the difficulties that can occur when using the modeling principles of the classical codes as well as introducing PHOEBE (the PHysics Of Eclipsing BinariEs)--a modern suite for modeling binary stars. PHOEBE was conceived by Andrej Prša and his collaborators, and has become one of the standard tools in the eclipsing binary field."--Source : résumé de l'éditeur.
Eclipsing Binary Stars
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Author : Andrej Prsa
language : en
Publisher:
Release Date : 2018-12-21
Eclipsing Binary Stars written by Andrej Prsa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-21 with Science categories.
The fascinating and observationally spectacular world of binary stars is a vast and beautiful one that is a significant aspect of many astrophysical studies. Modeling and Analysis of Eclipsing Binary Stars gives a comprehensive analysis and description of the science behind eclipsing binaries. It also explores the assumptions and the difficulties that can occur when using the modeling principles of the classical codes as well as introducing PHOEBE (the PHysics Of Eclipsing BinariEs)-a modern suite for modeling binary stars. PHOEBE was conceived by Andrej Prša and his collaborators, and has become one of the standard tools in the eclipsing binary field.This book provides a constructive and intriguing contribution to the expansion of the modeling approaches of binaries and our subsequent understanding of the processes that govern stellar evolution. Aimed at a wide audience, Prša provides new astronomers with the knowledge and background of eclipsing binary stars as well as facilitating researchers to a better understanding of the intricate details behind eclipsing binary models.
Light Curve Modeling Of Eclipsing Binary Stars
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Author : E.F. Milone
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Light Curve Modeling Of Eclipsing Binary Stars written by E.F. Milone 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 the two decades since the development of the first eclipsing-binary modeling code, new analytic techniques and the availability of powerful, sometimes dedicated computing facilities have made possible vastly improved determinations of fundamental and even transient stellar parameters. The scale of these developments, of course, raises questions about modeling tools, techniques, and philosophies, such as: Who will maintain and upgrade the codes? Will the codes be open to improvement by outsiders, and if so, how? And, indeed, what should be the goals of a modeling program? Such questions had not been aired for a long time and, for this reason alone, deserved to be discussed in as general a forum as the community provides. This volume contains material presented by Commission 42 (Close Binary Stars) during the International Astronomical Union's XXI General Assembly in Argentina, July 1991, and during IAU Colloquium 151, Cordoba, Argentina, August 1991. The techniques discussed include simulations of stellar bright and dark spots, streams, partial and complete stellar disks, prominences, and other features characterizing active stars; modeling of polarization parameters; models that use radial velocities as well as line profile simulations to model velocity field variation across stellar disks; the weighted effects of brightness asymmetries; and models for translucent eclipsing agents such as stellar winds.
On The Adjustment Of Spectrographic Elements Of Eclipsing Binaries
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Author : Daniel M. Popper
language : en
Publisher:
Release Date : 1963
On The Adjustment Of Spectrographic Elements Of Eclipsing Binaries written by Daniel M. Popper and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with categories.
Photometric And Spectroscopic Binary Systems
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Author : E.B. Carling
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Photometric And Spectroscopic Binary Systems written by E.B. Carling 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.
Our conference - opening today - has two aims in view: first, to commemorate some milestones in the development of the studies of close binary systems whose anniversaries fall in these years, as well as to take stock of our present knowledge accumulated through out preceding decades, in order to consider where do we go from here. This summer, 310 years will have elapsed since the first ec lipsing binary - Algol - was discovered in Bologna by Geminiano Montanari (1633-1687) to be a variable star; and 198 years have gone by since John Goodricke of York (1764-1786) established the fact that Algol's light changes were periodic. Moreover, it is al most exactly (to a month) now 100 years since Edward Charles Pickering (1846-1919) of Harvard Observatory in the United States took the first steps towards the development of systematic methods of analysis of the light changes of Algol and related systems - a topic which will constitute the major part of the programme of our present conference. The three dates recalled above illustrate that the discoverers of such celestial objects and observers of their light changes have been systematically ahead of the theoreticians endea vouring to understand the significance of the observed data by de cades and centuries in the past - a fact which, incidentally, con tinues to hold good (albeit with a diminishing lead-time) up to the present.
A Spectroscopic Investigation Of The Eclipsing Binary Epsilon Aurigae
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-08-10
A Spectroscopic Investigation Of The Eclipsing Binary Epsilon Aurigae written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-10 with categories.
The objectives were to examine, in detail, the spectra of the eclipsing binary Epsilon Aurigae taken with the IUE satellite telescope during the 1982 to 1984 eclipse. All of the low resolution spectra were analyzed and UV light curves are presented. The primary findings are as follows: (1) a constant eclipse depth from 1600 A to longer wavelengths and a sharp drop in the eclipse depth from 1600 to 1200 A; (2) the absence of large amplitude fluctuations in the UV as expected from a Cepheid primary; and (3) equal ingress and egress times in contradiction to that interpreted from visible light curves. The effects of these findings on the eclipse geometry are being studied. Balachandran, Suchitra Unspecified Center NASA-CR-189256, NAS 1.26:189256 NAS5-30760...
Eclipsing Binary Stars
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Author : Panagiotis G. Niarchos
language : en
Publisher:
Release Date : 2001
Eclipsing Binary Stars written by Panagiotis G. Niarchos and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Astronomy categories.
The importance of studying Eclipsing Binary Stars for the determination of fundamental stellar data is sketched. The eclipsing binaries, originally classified phenomenologically, are now understood on the basis of much firmer physics and the improved understanding has led to a morphological basis of classification. The main light curve models developed since Russell's era are presented along with the respective programs for analysis (Kallrath & Milone 1999). These models are based on the geometric effects due to eclipses and on physical proximity effects between the components. Significant progress was made in the early 1970s, when models and programs were developed to compute (synthetic) light and velocity curves directly. Such models and programs were based on spherical stars, ellipsoidal geometry and on Roche geometry. During the last 25 years the analysis of photometric and spectroscopic data of eclipsing binaries has been performed by means of synthetic light curve programs based on Roche geometry. The synthetic light curve programs, based on physical models, have contributed to our understanding of physical processes in stars and have been used to solve several important astrophysical problems. A desirable feature of a light curve program is the ability to incorporate additional astrophysics. There is a continuing need to improve the model physics, as we become more aware of the observational properties of stars.