Results 11 to 20 of about 84,708 (345)
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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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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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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DETECTION OF A WHITE DWARF COMPANION TO THE WHITE DWARF SDSSJ125733.63+542850.5 [PDF]
The Astrophysical Journal, 2011 SDSSJ125733.63+542850.5 (hereafter SDSSJ1257+5428) is a compact white dwarf binary from the Sloan Digital Sky Survey that exhibits high-amplitude radial velocity variations on a period of 4.56 hours. While an initial analysis suggested the presence of a neutron star or black-hole binary companion, a follow-up study concluded that the spectrum was ...
Marsh, T. R. +6 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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ON THE EVOLUTION OF MAGNETIC WHITE DWARFS [PDF]
The Astrophysical Journal, 2015 We present the first radiation magnetohydrodynamics simulations of the atmosphere of white dwarf stars. We demonstrate that convective energy transfer is seriously impeded by magnetic fields when the plasma-beta parameter, the thermal to magnetic pressure ratio, becomes smaller than unity.
P.-E. Tremblay +7 more
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The search for ZZ Ceti stars in the original Kepler mission [PDF]
, 2016 We report the discovery of 42 white dwarfs in the original Kepler mission field, including nine new confirmed pulsating hydrogen-atmosphere white dwarfs (ZZ Ceti stars).
Bell, Keaton J. +13 more
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Simulation of the white dwarf–white dwarf galactic background in the LISA data [PDF]
Classical and Quantum Gravity, 2005 14 pages and 6 figures. Submitted to Classical and Quantum Gravity (Proceedings of GWDAW9)
Edlund, J. +3 more
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The Possible White Dwarf-Neutron Star Connection [PDF]
, 1997 The current status of the problem of whether neutron stars can form, in close binary systems, by accretion-induced collapse (AIC) of white dwarfs is examined. We find that, in principle, both initially cold C+O white dwarfs in the high-mass tail of their
C Ritossa +27 more
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The White Dwarfs within 25 Parsecs of the Sun: Kinematics and Spectroscopic Subtypes [PDF]
, 2014 We present the fractional distribution of spectroscopic subtypes, range and distribution of surface temperatures, and kinematical properties of the white dwarfs within 25pc of the sun.
Holberg, J. B. +5 more
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