White Dwarf Atmospheres And Circumstellar Environments
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White Dwarf Atmospheres And Circumstellar Environments
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Author : Donald W. Hoard
language : en
Publisher: John Wiley & Sons
Release Date : 2012-09-19
White Dwarf Atmospheres And Circumstellar Environments written by Donald W. Hoard and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-19 with Science categories.
Written by selected astronomers at the forefront of their fields, this timely and novel book compiles the latest results from research on white dwarf stars, complementing existing literature by focusing on fascinating new developments in our understanding of the atmospheric and circumstellar environments of these stellar remnants. Complete with a thorough refresher on the observational characteristics and physical basis for white dwarf classification, this is a must-have resource for researchers interested in the late stages of stellar evolution, circumstellar dust and nebulae, and the future of our own Solar System.
White Dwarf Atmospheres And Circumstellar Environments
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Author : Donald W. Hoard
language : en
Publisher: John Wiley & Sons
Release Date : 2012-09-19
White Dwarf Atmospheres And Circumstellar Environments written by Donald W. Hoard and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-19 with Science categories.
Written by selected astronomers at the forefront of their fields, this timely and novel book compiles the latest results from research on white dwarf stars, complementing existing literature by focusing on fascinating new developments in our understanding of the atmospheric and circumstellar environments of these stellar remnants. Complete with a thorough refresher on the observational characteristics and physical basis for white dwarf classification, this is a must-have resource for researchers interested in the late stages of stellar evolution, circumstellar dust and nebulae, and the future of our own Solar System.
White Dwarfs
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Author : G. Vauclair
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
White Dwarfs written by G. Vauclair 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.
The European Workshop on White Dwarfs was initiated by Prof. V. Weidemann, with the first meeting organized in Kiel (FRG) in 1974. Almost every two years, an increasing number of astronomers met to share their results and projects in the subsequent workshops: Frascati (1976), Tel Aviv (1978), Paris (1981), Kiel (1984), Frascati (1986). In the mean time, two major IAU colloquia (No. 53 in Rochester, NY, 1979; and No. 114 in Hanover, NH, 1988) emphasized the importance of these stars for our understanding of stellar evolution. The informal organization of the white dwarf community has been the starting point for large cooperative projects of which the Hubble Space Telescope "White Dwarf Consortium" and the "Whole Earth Telescope" are the most spectacular examples. But many other successful collaborations have also been born during the very exciting discussions conducted in the last 16 years on the occasion of our regular meetings. The 7th European Workshop on White Dwarfs took place the year of the seventieth birthday of Prof. Evry Schatzman, whose pioneering work has been the inspiration for many of the new ideas in the white dwarf community. The Scientific Organizing Committee has agreed to dedicate the workshop to him on this occasion. We are pleased to publish as an introduction to the workshop, the text of the talk delivered by Prof. Schatzman at the workshop's banquet.
From Pulsations To Planetary Debris
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Author : Zachary Philip Vanderbosch
language : en
Publisher:
Release Date : 2021
From Pulsations To Planetary Debris written by Zachary Philip Vanderbosch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
The final fates of stars and their planetary systems are in most cases embodied by white dwarfs. These are the compact remnants of stellar evolution for all low- to intermediate-mass stars in our Galaxy, including the Sun. The relative simplicity of white dwarfs makes them valuable tools in a variety of astrophysical contexts, from placing limits on the age of our Galaxy, to measuring the bulk abundances of exoplanets via the presence of actively accreted metals in their atmospheres. White dwarfs can also exhibit photometric variability for a variety of reasons, both as isolated stars and in binary systems, providing insights into white dwarf structure and circumstellar environments. In this dissertation we first present novel techniques to identify variable white dwarfs in modern time-domain photometric surveys. We then focus on identifying and characterizing two types of variable white dwarfs: those that pulsate and those being transited by circumstellar planetary debris. Using the unprecedented number of white dwarfs observed by Gaia and the Zwicky Transient Facility (ZTF), we define a set of variability metrics based on these publicly available catalogues to efficiently identify variable white dwarfs across the Gaia color magnitude diagram. We then present a dedicated search for pulsating He-atmosphere white dwarfs (DBVs) using McDonald Observatory follow-up observations, in an attempt to better define the observed extent of the helium-atmosphere white dwarf instability strip. We increase the number of DBVs from 28 to 47 using Sloan Digital Sky Survey spectroscopy to initially identify candidate DBVs. We find the observed blue and red edges of the DB instability strip are still hotter than theoretical expectations by about 1500K and 600K, respectively. Using our set of Gaia and ZTF variability metrics, we identify and characterize the second and third cases of white dwarfs with recurring planetary debris transits, with debris orbital periods differing by more than two orders of magnitude. These objects, in combination with the first known system, probe a unique parameter space constraining earlier stages of the planetary debris disruption and migration process
The Structure Of White Dwarf Atmospheres
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Author : Yoichi Terashita
language : en
Publisher:
Release Date : 1966
The Structure Of White Dwarf Atmospheres written by Yoichi Terashita and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with categories.
Unlocking The Secrets Of White Dwarf Stars
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Author : Hugh M. Van Horn
language : en
Publisher: Springer
Release Date : 2014-11-14
Unlocking The Secrets Of White Dwarf Stars written by Hugh M. Van Horn and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-14 with Science categories.
White dwarfs, each containing about as much mass as our Sun but packed into a volume about the size of Earth, are the endpoints of evolution for most stars. Thousands of these faint objects have now been discovered, though only a century ago only three were known. They are among the most common stars in the Milky Way Galaxy, and they have become important tools in understanding the universe. Yet a century ago only three white dwarfs were known. The existence of these stars completely baffled the scientists of the day, and solving the mysteries of these strange objects required revolutionary advances in science and technology, including the development of quantum physics, the construction and utilization of large telescopes, the invention of the digital computer, and the ability to make astronomical observations from space. This book tells the story of the growth in our understanding of white dwarf stars, set within the context of the relevant scientific and technological advances. Part popular science, part historical narrative, this book is authored by one of the astrophysicists who participated directly in uncovering some of the secrets of white dwarf stars.
Applications Of Temperature Scaled White Dwarf Atmospheres
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Author : Brian F. Ventrudo
language : en
Publisher:
Release Date : 1988
Applications Of Temperature Scaled White Dwarf Atmospheres written by Brian F. Ventrudo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with White dwarf stars categories.
Theoretical Investigation Of White Dwarf Atmospheres
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Author : Yoichi Terashita
language : en
Publisher:
Release Date : 1965
Theoretical Investigation Of White Dwarf Atmospheres written by Yoichi Terashita and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Stars categories.
The Structure Of White Dwarf Atmospheres
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Author : Yoichi Terashita
language : en
Publisher:
Release Date : 1966
The Structure Of White Dwarf Atmospheres written by Yoichi Terashita and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Stars categories.
12th European Conference On White Dwarf Stars
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Author : Judith Lucille Provencal
language : en
Publisher:
Release Date : 2001
12th European Conference On White Dwarf Stars written by Judith Lucille Provencal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Social Science categories.
Annotation Seventy-four papers from the June 2000 conference (held in Newark, Delaware) address topics like white dwarf evolution, atmospheres and chemical composition, sdB stars, white dwarfs in binaries, magnetic white dwarfs, variable white dwarfs, white dwarf data bases, and astronomy and surveys. The future of white dwarf observing, astronomical education, and public outreach are also discussed. Annotation c. Book News, Inc., Portland, OR (booknews.com)
