Results 11 to 20 of about 73,128 (295)
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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Polluted white dwarfs reveal exotic mantle rock types on exoplanets in our solar neighborhood [PDF]
Nature Communications, 2021 While some exoplanets that once orbited Polluted white dwarfs are similar to Earth, most appear to have rock types that are exotic to our Solar System. We thus develop a new classification scheme to describe these new and novel lithologies that appear to
Keith D. Putirka, Siyi Xu
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Ultra-low-mass and small-radius white dwarfs made of heavy elements
Frontiers in Astronomy and Space Sciences, 2023 Seven possible ultra-low-mass and small-radius white dwarfs have been recently identified, with masses ranging from ∼0.02 M⊙ to ∼0.08 M⊙ and radii ranging from ∼ 4,270 km to 10670 km.
Cheng-Jun Xia +8 more
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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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The galactic population of white dwarfs [PDF]
, 2009 Original paper can be found at: http://www.iop.org/EJ/conf DOI: 10.1088/1742-6596/172/1/012004 [16th European White Dwarfs Workshop]The contribution of white dwarfs of the different Galactic populations to the stellar content of our Galaxy is only poorly
Alcock C Allsman R A Alves D R +10 more
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Isochrones and Luminosity Functions for Old White Dwarfs [PDF]
, 1999 Using a new grid of models of cooling white dwarfs, we calculate isochrones and luminosity functions in the Johnson-Kron/Cousins and HST filter sets for systems containing old white dwarfs.
Alessandro Chieffi +9 more
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