The age-metallicity dependence for white dwarf stars [PDF]
, 2015 We present a theoretical study on the metallicity dependence of the initial to final mass relation and its influence on white dwarf age determinations.
A. Romero, F. Campos, S. O. Kepler
semanticscholar +1 more source
Limits on a gravitational field dependence of the proton-electron mass ratio from H2 in white dwarf stars. [PDF]
Physical Review Letters, 2014 Spectra of molecular hydrogen (H2) are employed to search for a possible proton-to-electron mass ratio (μ) dependence on gravity. The Lyman transitions of H2, observed with the Hubble Space Telescope towards white dwarf stars that underwent a ...
J. Bagdonaite +11 more
semanticscholar +1 more source
Projected rotational velocities of WD1614+136 and WD1353+409 - implications for the rate of galactic Type Ia supernovae [PDF]
, 1998 The white dwarf stars WD1614+136 and WD1353+409 are not sufficiently massive to have formed through single star evolution. However, observations to date have not yet found any evidence for binarity.
Marsh, T. R., Maxted, P. F. L.
core +4 more sources
New white dwarf stars in the Sloan Digital Sky Survey Data Release 10 [PDF]
, 2014 We report the discovery of 9 089 new spectroscopically confirmed white dwarfs and subdwarfs in the Sloan Digital Sky Survey Data Release 10. We obtain Teff, log g and mass for hydrogen atmosphere white dwarf stars (DAs) and helium atmosphere white dwarf ...
S. O. Kepler +13 more
semanticscholar +1 more source
Pulsations of massive ZZ Ceti stars with carbon/oxygen and oxygen/neon cores [PDF]
, 2004 We explore the adiabatic pulsational properties of massive white dwarf stars with hydrogen-rich envelopes and oxygen/neon and carbon/oxygen cores. To this end, we compute the cooling of massive white dwarf models for both core compositions taking into ...
A. H. Córsico +46 more
core +3 more sources
ELM of ELM-WD: An Extremely-low-mass Hot Star Discovered in LAMOST Survey
The Astronomical Journal, 2023 The extremely-low-mass white dwarfs (ELM WDs) and pre-ELM WDs are helium-core white dwarfs with mass
Hailong Yuan (袁海龙) +9 more
doaj +1 more source
Methods of asteroseismology for white dwarf stars
Open Astronomy, 1993 Bradley P.A.
doaj +3 more sources
SDSS J142625.71+575218.3: A Prototype for A New Class of Variable White Dwarf [PDF]
, 2008 We present the results of a search for pulsations in six of the recently discovered carbon-atmosphere white dwarf ("hot DQ") stars. On the basis of our theoretical calculations, the star SDSS J142625.71 + 575218.3 is the only object expected to pulsate ...
DeGennaro, Steven +5 more
core +1 more source
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.
doaj +1 more source
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
doaj +1 more source