Results 11 to 20 of about 85,254 (340)
EPJ Web of Conferences, 2017 The Sloan Digital Sky Survey has allowed us to increase the number of known white dwarfs by a factor of five and consequently the number of known pulsating white dwarfs also by a factor of five.
Kepler S.O., Romero Alejandra D.
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Proceedings of Supernovae: lights in the darkness — PoS(SUPERNOVA), 2008 Thermonuclear (type Ia) supernovae are explosions in accreting white dwarfs, but the exact scenario leading to these explosions is still unclear. An important step to clarify this point is to understand the behaviour of accreting white dwarfs in close binary systems.
Hernanz, Margarita, José, Jordi
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White Dwarf and Pre-White Dwarf Pulsations [PDF]
AIP Conference Proceedings, 2009 In this review I describe the basic properties of white dwarfs and their pulsations. I then discuss some of the areas in which the pulsations can provide meaningful results, such as internal chemical profiles, possible emission of “exotic” particles, planet detection, crystallization, convection, accretion, and cosmochronology.
M. H. Montgomery +2 more
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White Dwarf Crystallization [PDF]
International Astronomical Union Colloquium, 1994 AbstractThe inclusion of a detailed treatment of solidification processes in the cooling theory of carbon–oxygen white dwarfs is of crucial importance for the determination of their luminosity function. Carbon–oxygen separation at crystallization yields delays larger than 2 Gyr to cool down to luminosities corresponding to the observed cut–off.
E. García-Berro, M. Hernanz
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White-dwarf–white-dwarf galactic background in the LISA data [PDF]
Physical Review D, 2005 36 pages, 15 ...
Edlund, J. +3 more
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International Astronomical Union Colloquium, 1994 It is the intention of this review to explain what white dwarfs are and why it is interesting to study them, and why the H+2 molecule is of special interest. The evolution, from start to finish, of a star of mass less than about 2 solar masses (M⊙), can roughly be summarized as follows: – A cloud of gas contracts from the interstellar ...
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Luminosity and cooling suppression in magnetized white dwarfs [PDF]
, 2018 We investigate the luminosity and cooling of highly magnetized white dwarfs where cooling occurs by the diffusion of photons. We solve the magnetostatic equilibrium and photon diffusion equations to obtain the temperature and density profiles in the ...
Bhattacharya, Mukul +2 more
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A Comprehensive Spectroscopic Analysis of DB White Dwarfs [PDF]
, 2011 We present a detailed analysis of 108 helium-line (DB) white dwarfs based on model atmosphere fits to high signal-to-noise optical spectroscopy. We derive a mean mass of 0.67 Mo for our sample, with a dispersion of only 0.09 Mo. White dwarfs also showing
A. Beauchamp +51 more
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, 2022 48 pages, 6 figures, Invited (and accepted) chapter for the Handbook of X-ray and Gamma-ray Astrophysics, Editors: Cosimo Bambi, Andrea ...
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White Dwarf and Pre-White Dwarf Oscillations [PDF]
International Astronomical Union Colloquium, 1993 AbstractCompact stars that result from extreme mass loss on the asymptotic giant branch and planetary nebula formation are observed to pulsate in a very large surface effective temperature range as they cool to become the classical white dwarfs. The hottest and most luminous of these display periods in excess of 1000 seconds because they are large, but
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