Results 11 to 20 of about 2,510 (308)
International Journal of Modern Physics: Conference Series, 2017 White dwarf stars are the final stage of most stars, born single or in multiple systems. We discuss the identification, magnetic fields, and mass distribution for white dwarfs detected from spectra obtained by the Sloan Digital Sky Survey up to Data Release 13 in 2016, which lead to the increase in the number of spectroscopically identified white ...
Kepler, S. O. +3 more
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Cooling Process of White Dwarf Stars in Palatini f(R) Gravity
Universe, 2022 A simple cooling model of white dwarf stars is re-analyzed in Palatini f(R) gravity. Modified gravity affects the white dwarf structures and consequently their ages.
Surajit Kalita +2 more
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Axions and the Cooling of White Dwarf Stars [PDF]
The Astrophysical Journal, 2008 White dwarfs are the end-product of the lifes of intermediate- and low-mass stars and their evolution is described as a simple cooling process. Recently, it has been possible to determine with an unprecedented precision their luminosity function, that is, the number of stars per unit volume and luminosity interval.
Isern, J. +3 more
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White dwarf stars with carbon atmospheres [PDF]
Nature, 2007 White dwarfs represent the endpoint of stellar evolution for stars with initial masses between approximately 0.07 and 8-10, where is the mass of the Sun (more massive stars end their life as either black holes or neutron stars). The theory of stellar evolution predicts that the majority of white dwarfs have a core made of carbon and oxygen, which ...
Dufour, Patrick +3 more
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Asteroseismology of pulsating DA white dwarfs with fully evolutionary models
EPJ Web of Conferences, 2013 We present a new approach for asteroseismology of DA white dwarfs that consists in the employment of a large set of non-static, physically sound, fully evolutionary models representative of these stars.
Althaus L.G. +3 more
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The Astrophysical Journal, 2023 AllS single stars that are born with masses up to 8.5–10 M _⊙ will end their lives as white dwarf (WD) stars. In this evolutionary stage, WDs enter the cooling sequence, where the stars radiate away their thermal energy and are basically cooling.
Weston Hall +2 more
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Stark Broadening and White Dwarfs
Open Astronomy, 2011 White dwarf and pre-white dwarfs are the best types of stars for the application of Stark broadening research results in astrophysics, since in the atmospheres of these stars physical conditions are very favorable for this line broadening mechanism - in ...
Dimitrijević Milan S. +3 more
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Searching for benchmark systems containing ultra-cool dwarfs and white dwarfs
EPJ Web of Conferences, 2013 We have used the 2MASS all-sky survey and WISE to look for ultracool dwarfs that are part of multiple systems containing main sequence stars. We cross-matched L dwarf candidates from the surveys with Hipparcos and Gliese stars, finding two new systems ...
Pinfield D.J., Gomes J.I.
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White Dwarf.Org - Establishing a Permanent Endowment for the Whole Earth Telescope
Open Astronomy, 2003 White Dwarf Research Corporation is a non-profit organization dedicated to scientific research and public education on topics relevant to white dwarf stars.
Metcalfe Travis S.
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Frontiers in Astronomy and Space Sciences, 2022 In this research, first considering the electron–electron interaction in the high-density Fermi electron gas at T = 0 K, this interaction causes the pressure 2/137 time less than the original value.
Ting-Hang Pei
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