Dispersion of SDSS and PG white dwarfs against mass
A Gaia Data Release 2 catalogue of white dwarfs and a comparison with SDSS
... average mass He-atmosphere white ...DA white dwarfs without suffering from the bifurcation problem of He-atmospheres, and therefore have masses slightly higher than the canonical ...DA ...
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3D model atmospheres for extremely low mass white dwarfs
... This trend disappears in the 3D version of the plot, where the 3D corrections lower the implied surface gravity. The blue edge of the instability strip is well de fi ned in the 1D analysis. The 3D corrections move the ...
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Pulsating white dwarfs
... in SDSS spectra are poor surface gravity indicators below T eff 10 000 K, considering the SDSS spectra are concentrated mainly outside the Galaxy disk, we were surprised that several thousand stars were ...
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Pulsating white dwarfs
... in SDSS spectra are poor surface gravity indicators below T eff 10 000 K, considering the SDSS spectra are concentrated mainly outside the Galaxy disk, we were surprised that several thousand stars were ...
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Formation of low-mass helium white dwarfs orbiting binary millisecond pulsars
... envelope mass on the cooling track) for theoretical models of ELM ...acting against the gravitational settling in ELM proto-WDs is the recent discovery of three ELM proto-WDs pulsators ( Gianninas et ...
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Gaia photometry for white dwarfs
... Fig. 13. Relative error in T eff derived for real WDs observed by SDSS and extracted from Kilic et al. (2010a) as a function of T eff (left) and of the uncertainty in Gaia G BP −G RP colour (right). ferences in ...
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The properties of cool DZ white dwarfs
... by SDSS J0741+3146 and SDSS J0823+0546, ...at SDSS J0823+0546 was deposited t = 10τ Fe ago, the implied parent body mass would be similar to that of the ...a mass closer to that ...
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Pulsating low-mass white dwarfs in the frame of new evolutionary sequences : V. Asteroseismology of ELMV white dwarf stars
... Finally, SDSS J1735 +2134 (hereafter J1735) and SDSS J2139+2227 (hereafter J2139) are two recently detected ELMVs, according to Bell et ...the mass of ELM WDs for the same log(g) and T e ff ...
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Two white dwarfs with oxygen rich atmospheres
... the SDSS photometry In order to determine a first estimate of the effective temperatures of the two white dwarfs, we fitted the He-models to the observed ugriz magnitudes, which were corrected to the ...
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Infrared variability of two dusty white dwarfs
... polluted white dwarfs often show excess infrared radiation from circumstellar dust disks, which are modeled as a result of tidal disruption of extrasolar minor ...dusty white dwarfs, ...
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The coolest extremely low-mass white dwarfs
... 2. Evolutionary models This work is based on fully evolutionary models of low-mass He- core WDs generated with the LPCODE stellar evolution code. This its definition). We assume the metallicity of the progenitor ...
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The Gaia DR1 mass–radius relation for white dwarfs
... orbital mass mea- surements ( Shipman et ...the white dwarf rel- atively independently of its atmospheric ...on mass and radius ( Barstow et ...
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The Gaia DR1 mass–radius relation for white dwarfs
... white dwarfs. Gaia DR1 G magni- tudes are available for 43 of the white dwarf companions, while V magnitudes can be found in the literature for most ...
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A Spitzer Space Telescope Study of the Debris Disks around Four SDSS White Dwarfs
... isolated white dwarfs that were previously known to harbor circumstellar gaseous ...the white dwarf contribution, ...the white dwarf ...five white dwarfs with gaseous debris ...
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A search for variable white dwarfs in large area time domain surveys : a pilot study in SDSS Stripe 82
... of white dwarf temperature it appears that the narrow range of T eff and log g that defines the ZZ Ceti instability strip does not unambiguously project to the observed ...of SDSS are not acquired ...
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Features of the mass transfer in magnetic cataclysmic variables with fast-rotating white dwarfs
... In this case the accretion disk is not formed. The possible representative object of superpropellers is AE Aqr. The analysis [3] has shown that the most part of the strange behavior of this system can be connected with ...
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Snow White and the Seven Dwarfs
... Then she was astounded, for she knew that the looking-glass never spoke falsely, and she knew that the huntsman had betrayed her, and that little snow-white was still alive. And so she thought and thought again ...
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Snow White and the Seven Dwarfs
... Two decades later, the Disney studio used the rotoscope in a different way: the tracings did not appear in the film, but served as guides. After studying them, the animators could start afresh, constructing a wholly ...
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Accretion on to Magnetic White Dwarfs
... the white dwarf surface such as the anomalous soft-X-ray excess and its time variability provide strong support for the hypothesis that under certain circumstances the field channelled funnel flow is ...smaller ...
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White Dwarfs in GALEX Survey
... (2QZ) white dwarf cata- log with the GALEX 2nd Data Release and the Sloan Digital Sky Survey (SDSS) data release 5 to obtain ultraviolet photometry (FUV, NUV) for approximately 700 objects and optical ...
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