A Spectroscopic Investigation Of The Eclipsing Binary Epsilon Aurigae
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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...
Giants Of Eclipse The Aurigae Stars And Other Binary Systems
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Author : Thomas B. Ake
language : en
Publisher: Springer
Release Date : 2014-12-30
Giants Of Eclipse The Aurigae Stars And Other Binary Systems written by Thomas B. Ake and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-30 with Science categories.
The zeta Aurigae stars are the rare but illustrious sub-group of binary stars that undergo the dramatic phenomenon of "chromospheric eclipse". This book provides detailed descriptions of the ten known systems, illustrates them richly with examples of new spectra, and places them in the context of stellar structure and evolution. Comprised of a large cool giant plus a small hot dwarf, these key eclipsing binaries reveal fascinating changes in their spectra very close to total eclipse, when the hot star shines through differing heights of the "chromosphere", or outer atmosphere, of the giant star. The phenomenon provides astrophysics with the means of analyzing the outer atmosphere of a giant star and how that material is shed into space. The physics of these critical events can be explained qualitatively, but it is more challenging to extract hard facts from the observations, and tough to model the chromosphere in any detail. The book offers current thinking on mechanisms for heating a star's chromosphere and on how a star loses mass, and relates this science synergistically to studies of other stars and binaries, and to the increasing relevance of contributions from new techniques in interferometry and asteroseismology. It also includes a detailed discussion of the enigmatic star epsilon Aurigae, which had recently undergone one of its very infrequent and very baffling eclipses. Though not a zeta Aurigae system, epsilon Aurigae is a true "Giant" among eclipsing stars. The 7 chapters of this book, written by a group of experts, have been carefully edited to form a coherent volume that offers a thorough overview of the subject to both professional and student.
Giants Of Eclipse
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Author : Thomas B. Ake
language : en
Publisher:
Release Date : 2015-01-31
Giants Of Eclipse written by Thomas B. Ake and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-01-31 with categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1992
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.
A Spectroscopic Study Of Epsilon Aurigae
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Author : Stephen Charles Morris
language : en
Publisher:
Release Date : 1963
A Spectroscopic Study Of Epsilon Aurigae written by Stephen Charles Morris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Double stars categories.
Eclipsing Binary Stars Modeling And Analysis
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Author : Josef Kallrath
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-08-14
Eclipsing Binary Stars Modeling And Analysis 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 2009-08-14 with Science categories.
Astronomers learn much of what they know about the mass, brightness, and size of stars by observing binary systems, in which two stars orbit each other, periodically cutting off the others light. This book provides astronomers with a guide to specifying an astrophysical model for a set of observations, selecting an algorithm to determine the parameters of the model, and estimating the errors of the parameters.
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.
Government Reports Announcements Index
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Author :
language : en
Publisher:
Release Date : 1992-06
Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-06 with Science categories.
Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1990
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Physics categories.
Epsilon Aurigae
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Author : Dana Edward Backman
language : en
Publisher:
Release Date : 1985
Epsilon Aurigae written by Dana Edward Backman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Astronomical photometry categories.