Results 1 to 10 of about 69,486 (315)
Modelling quantum aspects of disruption of a white dwarf star by a black hole [PDF]
We study the final stages of the evolution of a binary system consisted of a black hole and a white dwarf star. We implement the quantum hydrodynamic equations and carry out numerical simulations.
Tomasz Karpiuk+3 more
doaj +2 more sources
The Sloan Digital Sky Survey has allowed us to increase the number of known white dwarfs by a factor of five and consequently the number of known pulsating white dwarfs also by a factor of five. It has also led to the discovery of new types of variable white dwarfs, as the variable hot DQs, and the pulsating Extremely Low Mass white dwarfs.
Souza Oliveira Kepler+1 more
arxiv +6 more sources
Stark Broadening and White Dwarfs [PDF]
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
doaj +7 more sources
The recognition that planets may survive the late stages of stellar evolution, and the prospects for finding them around White Dwarfs, are growing. We discuss two aspects governing planetary survival through stellar evolution to the White Dwarf stage ...
Bonsor Amy+4 more
doaj +3 more sources
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 dwarf
Gustavo Ourique+3 more
arxiv +5 more sources
The article covers the physical properties and evolution of single white dwarfs ranging in temperature from 20,000K to 200,000 and higher, the hottest know electron-degenerate stars. After discussing the classification of their spectra, the author reviews the known properties, parameters, evolutionary state, as well as persisting and new puzzles ...
arxiv +4 more sources
UBVR Photometry of white dwarfs and white dwarfs suspects [PDF]
Photoelectric 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.
Richard D. Schwartz
openalex +3 more sources
ELOVL5 and VLDLR synergistically affect n-3 PUFA deposition in eggs of different chicken breeds [PDF]
: There was no significant difference in the composition and content of fatty acids in eggs among different breeds initially, but following the supplementation of flaxseed oil, Dwarf Layer were observed to deposit more n-3 polyunsaturated fatty acid ...
Caiyun Jiang+8 more
doaj +2 more sources
A Mini-Review of Accreting Pulsating White Dwarfs
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