The effect of $^{22}$Ne diffusion in the evolution and pulsational properties of white dwarfs with solar metallicity progenitors [PDF]
, 2016 Because of the large neutron excess of $^{22}$Ne, this isotope rapidly sediments in the interior of the white dwarfs. This process releases an additional amount of energy, thus delaying the cooling times of the white dwarf.
a--Berro, Enrique Garcí +7 more
core +5 more sources
Unraveling Alkali Ion Electron Donation for Enhancing Heterogeneous Catalytic Oxidation
Advanced Science, EarlyView.A new mechanistic pathway for potassium (K) ions as electron donors is identified by constructing single K ion chains confined within hexagonal WO3 tunnels. The as‐produced high‐electron‐density Kδ+ (0<δ<1) ions not only facilitate the formation of oxygen vacancies that behave classical electronic effect but, more importantly, also directly donate ...
Jin Wang +6 more
wiley +1 more source
Novel Atmospheric Dynamics Shape the Inner Edge of the Habitable Zone around White Dwarfs
The Astrophysical JournalWhite dwarfs offer a unique opportunity to search nearby stellar systems for signs of life, but the habitable zone around these stars is still poorly understood.
Ruizhi Zhan +2 more
doaj +1 more source
A Mini-Review of Accreting Pulsating White Dwarfs
Frontiers in Astronomy and Space Sciences, 2021 The discovery in 1998 of a pulsating white dwarf in the cataclysmic variable GW Lib opened up a new avenue of exploration in the asteroseismology of white dwarfs.
Paula Szkody
doaj +1 more source
Discovery of New Ultracool White Dwarfs in the Sloan Digital Sky Survey
, 2004 We report the discovery of five very cool white dwarfs in the Sloan Digital Sky Survey (SDSS). Four are ultracool, exhibiting strong collision induced absorption (CIA) from molecular hydrogen and are similar in color to the three previously known coolest
Atsuko Nitta +17 more
core +2 more sources
Neural Network identification of halo white dwarfs [PDF]
, 1998 The white dwarf luminosity function has proven to be an excellent tool to study some properties of the galactic disk such as its age and the past history of the local star formation rate.
Garcia-Berro, Enrique +2 more
core +3 more sources
3D1D hydro-nucleosynthesis simulations – I. Advective–reactive post-processing method and its application to H ingestion into He-shell flash convection in rapidly accreting white dwarfs [PDF]
, 2021 David W. Stephens +5 more
openalex +1 more source
Advanced Science, EarlyView.Multicomponent alloys, such as high‐entropy alloys (HEAs), are considered to be in a random solid solution. However, recent studies have shown that short‐range ordering (SRO) is prevalent in these HEAs due to multipairwise interactions among the constituent elements, which can be deleterious.
Moses A. Adaan‐Nyiak +8 more
wiley +1 more source
AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury
, 2022 Hepatology, EarlyView.
Robert J. Fontana +6 more
wiley +1 more source
The Lowest Mass White Dwarf [PDF]
, 2006 Extremely low mass white dwarfs are very rare objects likely formed in compact binary systems. We present MMT optical spectroscopy of 42 low mass white dwarf candidates serendipitously discovered in a survey for hypervelocity B-type stars.
Carlos Allende Prieto +5 more
core +3 more sources