Results 1 to 10 of about 11,159 (268)

“POP/STARS”

open access: yesPersona Studies
In 2018, American developer Riot Games introduced their new musical venture – K-pop virtual band K/DA – through a live augmented reality performance opening the League of Legends World Championship Finals.
Andra Ivănescu
doaj   +4 more sources

Catalog of Magnetic White Dwarfs with Hydrogen Dominated Atmospheres

open access: yesThe Astrophysical Journal, 2023
White dwarfs are excellent research laboratories as they reach temperatures, pressures, and magnetic fields that are unattainable on Earth. To better understand how these three physical parameters interact with each other and with other stellar features,
L. L. Amorim   +4 more
doaj   +1 more source

Origin of the DA and non-DA white dwarf stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1989
Understanding the origin of DA and non-DA stars — the bifurcation of the white dwarf cooling sequence — is one of oldest and perniciously difficult problems in the white dwarf research field. Processes which could play a role have been discussed for years. For example, the idea of diffusive element separation was suggested by Schatzman (1958).
openaire   +1 more source

A PRESENÇA DA FRAGMENTAÇÃO CONSTITUCIONAL NO SENADO GALÁCTICO DA FRANQUIA STAR WARS

open access: yesRevista de Direito Brasileira, 2022
Na história de Star Wars, em que pese a República Galáctica tenha instituído um ordenamento jurídico universal, há planetas com leis próprias, direitos não-oficiais, em um exemplo claro de pluralismo jurídico. Na contemporaneidade, é possível constatar que, assim como no filme, os atuais modelos de direito não conseguem mais abranger a todos os ...
Leonel Severo Rocha   +2 more
openaire   +2 more sources

On the Spectral Evolution of Hot White Dwarf Stars. IV. The Diffusion and Mixing of Residual Hydrogen in Helium-rich White Dwarfs

open access: yesThe Astrophysical Journal, 2023
In the framework of our extensive modeling study of the spectral evolution of white dwarfs, we present here a new set of detailed calculations of the transport of residual hydrogen in helium-rich white dwarfs. First, we investigate the so-called float-up
A. Bédard, P. Bergeron, P. Brassard
doaj   +1 more source

All-sky Faint DA White Dwarf Spectrophotometric Standards for Astrophysical Observatories: The Complete Sample

open access: yesThe Astrophysical Journal, 2023
Hot DA white dwarfs (DAWDs) have fully radiative pure hydrogen atmospheres that are the least complicated to model. Pulsationally stable, they are fully characterized by their effective temperature T _eff and surface gravity $\mathrm{log}\,g$ , which can
Tim Axelrod   +16 more
doaj   +1 more source

The Stellar Space Distributions of dA and gK Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1995
AbstractWe present a case study on the stellar space distribution of stars with MK spectral types B8 to A2 (dA) and gG8 to gK2 (gK) in a sky region of 25 square degrees, centred at the galactic coordinate l = 4° and b = +12°. Two hundred and forty-eight (248) stars with MK type of B8–A2 and gG8–gK2 were identified in this field.
D. N. Dawanas, B. Hidayat
openaire   +1 more source

Asteroseismic Study of KUV03442+0719 with Parallax Constraints

open access: yesThe Astrophysical Journal, 2023
Hydrogen atmosphere white dwarf KUV03442+0719 was first reported as a pulsator by Gianninas et al. in 2006. Follow-up campaigns by Su et al. revealed more periods.
Agnes Bischoff-Kim
doaj   +1 more source

On mode trapping in pulsating DA white dwarf stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2002
5 pages, 6 figures, to be published in ...
Benvenuto, Omar Gustavo   +3 more
openaire   +4 more sources

The DB gap and a new class of pulsating white dwarfs

open access: yesEPJ Web of Conferences, 2013
The recent systematic surveys providing enormously massive datasets of white dwarfs show that there is still a deficit of a factor of 2.5 in the DA/non-DA ratio within the temperature range of 30 000 K < Teff < 45 000 K, which has been regarded as the ...
Shibahashi H.
doaj   +1 more source

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