Results 111 to 120 of about 172,722 (314)
Laboratory Hydrogen-Beta Emission Spectroscopy for Analysis of Astrophysical White Dwarf Spectra
Atoms, 2018 This work communicates a review on Balmer series hydrogen beta line measurements and applications for analysis of white dwarf stars. Laser-induced plasma investigations explore electron density and temperature ranges comparable to white dwarf star ...
Christian G. Parigger +3 more
doaj +1 more source
Low Luminosity Stars and White Dwarfs [PDF]
Highlights of Astronomy, 1974 (1) When discussing properties of stars of low luminosity we should first define what we mean by that term. My own feeling is that a bolometric luminosity of 0.001 of that of the Sun appears to be a reasonable upper limit for ‘low luminosity’. Further, it is obvious that, in order to find any numbers of them, one must go down to the very faintest ...
openaire +2 more sources
On the Theory of White Dwarf Stars: II. The Accretion of Interstellar Matter by White Dwarfs [PDF]
, 1952 L. Mestel
openalex +1 more source
Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.Abstract Revision surgery after anterior cruciate ligament reconstruction (ACL‐R) is hypothesized to be the result of an interplay between factors associated with the anatomy, physiological characteristics and environment of the patient. The multifactorial nature of revision ACL‐R risk is difficult to quantify, and evidence regarding the independent ...
Bálint Zsidai +10 more
wiley +1 more source
Understanding white dwarf binary evolution with white dwarf/main sequence binaries: first results from SEGUE [PDF]
arXiv, 2006 Close white dwarf binaries make up a wide variety of objects such as double white dwarf binaries, which are possible SN Ia progenitors, cataclysmic variables, super soft sources, or AM CVn stars. The evolution and formation of close white dwarf binaries crucially depends on the rate at which angular momentum is extracted from the binary orbit.
arxiv
The Theory of Pressure Ionization and the Constitution of the White Dwarf Stars [PDF]
, 1939 F. C. Auluck, E. A. Milne
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Nano Select, EarlyView.Synthesis of metal oxide from different types of green plants for a sustainable environment. ABSTRACT The demand for green synthesis of metal oxide nanomaterials is increasing tremendously to achieve sustainable development goals and for a clean environment.
Sanjana Afrin Disha +3 more
wiley +1 more source
The Astrophysical JournalThe recent prediction and discovery of hypervelocity supernova survivors has provided strong evidence that the “dynamically driven double-degenerate double-detonation” (D ^6 ) Type Ia supernova scenario occurs in nature.
Ken J. Shen
doaj +1 more source
Hydrogen-Atmosphere White Dwarfs Are Less Likely To Be Found with Wide-Binary Companions [PDF]
arXivThe fraction of white dwarfs found in wide binaries is estimated by cross referencing a catalogue of wide binaries with catalogues photometrically determined white-dwarf candidates and spectroscopically confirmed white dwarf stars. The wide-binary fraction of white dwarfs with hydrogen-dominated atmospheres is about 5%, but the fraction of white dwarfs
arxiv
Applied Vegetation Science, Volume 25, Issue 4, October/December 2022., 2022 We estimated the future distribution of alpine and subalpine vegetation types under climate change in the Taisetsu Mountains, Daisetsuzan National Park, Hokkaido (northern Japan). Under the RCP2.6 scenario, habitats suitable for snowbeds and alpine heathland/fellfield drastically decreased overall.
Yukihiro Amagai +2 more
wiley +1 more source