Results 221 to 230 of about 2,367 (264)
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International Journal of Modern Physics D, 2004
As 98% of all stars evolve into white dwarf starsm their study tell us about the evolution of the majority of stars. White dwarf stars show luminosity variations when their temperature reach instabilitity strips caused by high surface opacity. These variations are due to global pulsations that can be used to study the internal structure and evolution ...
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As 98% of all stars evolve into white dwarf starsm their study tell us about the evolution of the majority of stars. White dwarf stars show luminosity variations when their temperature reach instabilitity strips caused by high surface opacity. These variations are due to global pulsations that can be used to study the internal structure and evolution ...
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Nature, 1948
IN a recent paper, Blackett1 has suggested that the Zeeman effect might be responsible for the peculiar absence of metallic lines in the spectra of most of the white dwarfs and may also contribute to the broadening of the hydrogen lines. Since this suggestion was given as one more argument in support of the theory of the magnetic field of massive ...
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IN a recent paper, Blackett1 has suggested that the Zeeman effect might be responsible for the peculiar absence of metallic lines in the spectra of most of the white dwarfs and may also contribute to the broadening of the hydrogen lines. Since this suggestion was given as one more argument in support of the theory of the magnetic field of massive ...
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1971
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. The aim of this thesis is to use model-atmosphere techniques and intermediate-band photoelectric scans to determine the properties of white dwarfs.
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NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. The aim of this thesis is to use model-atmosphere techniques and intermediate-band photoelectric scans to determine the properties of white dwarfs.
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UBVR Photometry of white dwarfs and white dwarfs suspects
Publications of the Astronomical Society of the Pacific, 1972Photoelectric UBVr photometry is presented for 33 white-dwarf suspects from the Lowell Observatory lists. On the basis of (B- V) and (U- B) color indices, eight probable white dwarfs are identffied.
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1989
This book contains the contributed papers and reviews from IAU Colloquium Number 114 on White Dwarfs held at Dartmouth College in August 1988. All the current fields of research in this area are covered including the evolution of white dwarfs, links to progenitors, luminosity functions of white dwarfs, evolution of white dwarfs in binaries ...
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This book contains the contributed papers and reviews from IAU Colloquium Number 114 on White Dwarfs held at Dartmouth College in August 1988. All the current fields of research in this area are covered including the evolution of white dwarfs, links to progenitors, luminosity functions of white dwarfs, evolution of white dwarfs in binaries ...
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The 40 pc sample of white dwarfs from Gaia
Monthly Notices of the Royal Astronomical Society, 2023Boris Gaensicke +2 more
exaly
1981
The observations of the 12 known magnetic white dwarfs are reviewed and a list of mechanisms is discussed which could give rise to the observed absorption and polarization spectra. Particular emphasis is placed on the observations of, and mechanisms important in the 3 magnetic white dwarfs to be modelled - BPM 25114, G 99-47 and GD 90.
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The observations of the 12 known magnetic white dwarfs are reviewed and a list of mechanisms is discussed which could give rise to the observed absorption and polarization spectra. Particular emphasis is placed on the observations of, and mechanisms important in the 3 magnetic white dwarfs to be modelled - BPM 25114, G 99-47 and GD 90.
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No evidence for a strong decrease of planetesimal accretion in old white dwarfs
Monthly Notices of the Royal Astronomical Society, 2021Siyi Xu, Simon Blouin, Blouin Simon
exaly
Can Gaia find planets around white dwarfs?
Monthly Notices of the Royal Astronomical Society, 2022Alexander James Mustill +2 more
exaly