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White Dwarf Stars: A Brief Overview
Fontaine, Gilles; Brassard, Pierre; Charpinet, Stephane et al.
2013In Astronomical Society of the Pacific Conference Series, 479, p. 211
Peer reviewed
 

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Abstract :
[en] We present a brief summary of what is currently known about white dwarf stars, with an emphasis on their evolutionary and internal properties. As is well known, white dwarfs represent the end products of stellar evolution for the vast majority of stars and, as such, bear the signatures of past events (such as mass-loss, mixing phases, loss and redistribution of angular momentum, and thermonuclear burning) that are of essential importance in the evolution of stars in general. In addition, white dwarf stars represent ideal testbeds for our understanding of matter under extreme conditions, and work on their constitutive physics (neutrino production rates, conductive and radiative opacities, interior liquid and solid equations of state, partially ionized and partially degenerate envelope equations of state, diffusion coefficients, line broadening mechanisms) is still being actively pursued. Given a set of constitutive physics, cooling white dwarfs can be used advantageously as cosmochronometers. Moreover, the field has been blessed by the existence of four distinct families of pulsating white dwarfs, each mapping a different evolutionary phase, and this allows the application of the asteroseismological method to probe and test their internal structure and evolutionary state.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Fontaine, Gilles
Brassard, Pierre
Charpinet, Stephane
Randall, Suzanna K
Van Grootel, Valérie  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Language :
English
Title :
White Dwarf Stars: A Brief Overview
Publication date :
December 2013
Event name :
Fujihara Seminar 2012
Event organizer :
H. Shibahashi
Event place :
Hakone, Japan
Event date :
25 au 30 novembre 2012
By request :
Yes
Audience :
International
Journal title :
Astronomical Society of the Pacific Conference Series
ISSN :
1050-3390
Publisher :
Astronomical Society of the Pacific, San Francisco, United States - California
Special issue title :
Progress in Physics of the Sun and Stars: A New Era in Helio- and Asteroseismology
Volume :
479
Pages :
211
Peer reviewed :
Peer reviewed
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