Results 1 to 10 of about 563,854 (280)
Convective Penetration in Early-type Stars
The Astrophysical Journal, 2022 Abstract Observations indicate that the convective cores of stars must ingest a substantial amount of material from the overlying radiative zone, but the extent of this mixing and the mechanism that causes it remain uncertain. Recently, Anders et al.
Adam S. Jermyn +3 more
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Variability of Magnetic Hot Stars from the TESS Observations
The Astrophysical Journal, 2023 Magnetic hot stars refer to stars that have effective temperatures approximately in the range from 7000–50,000 K, and with large-scale globally organized magnetic fields.
Dong-Xiang Shen +9 more
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Five Massive Contact Binaries with Twin Components in LMC
The Astrophysical Journal, 2023 Massive contact binaries refer to the close binary systems in which the components have filled their respective Roche lobes and share a common envelope with early-type spectra.
Fu-Xing Li +8 more
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New Method to Detect and Characterize Active Be Star Candidates in Open Clusters
Galaxies, 2023 With the aim of better understanding the physical conditions under which Be stars form and evolve, it is imperative to further investigate whether poorly studied young open clusters host Be stars.
Anahí Granada +3 more
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Asteroseismology of Close Binary Stars: Tides and Mass Transfer
Frontiers in Astronomy and Space Sciences, 2021 The study of stellar oscillations allows us to infer the properties of stellar interiors. Meanwhile, fundamental parameters such as mass and radius can be obtained by studying stars in binary systems. The synergy between binarity and asteroseismology can
Zhao Guo
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Astrophysics and Space Science, 1995 Away from the young disk, several classes of early type stars are found. They include (i) the old, metal-poor blue horizontal branch stars of the halo and the metal-poor tail of the thick disk; (ii) metal-rich young A stars in a rapidly rotating subsystem but with a much higher velocity dispersion than the A stars of the young disk, and (iii) a newly ...
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Revealing the Binarity of HD 36030—One of the Hottest Flare Stars
Galaxies, 2023 The Kepler and TESS space missions significantly expanded our knowledge of what types of stars display flaring activity by recording a vast amount of super-flares from solar-like stars, as well as detecting flares from hotter stars of A-F spectral types.
Olga Maryeva +2 more
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STAR FORMATION BIMODALITY IN EARLY-TYPE GALAXIES [PDF]
The Astrophysical Journal, 2014 We compute the properties of a sample of 221 local early-type galaxies with a spectral energy distribution (SED) modeling software, CIGALEMC. Concentrating on the star forming activity and dust contents, we derive parameters such as the specific star formation rate, the dust luminosity, dust mass and temperature.
Amblard, A. +5 more
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Radiative Wind Acceleration in Early Type Stars [PDF]
International Astronomical Union Colloquium, 1981 AbstractThe processes of radiative acceleration of stellar winds in OB stars by single and multiple photon scattering are considered. Single scattering can be the dominant accelerating process for stars later than B2 (Teff < 2 x 104 K) and can account for terminal velocities up to 500 – 1000 km s-1 . Multiple scattering of photons in the approximate
N. Panagia, F. Macchetto
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Nature, 1967 The Early Type Stars By Anne B. Underhill. (Astrophysics and Space Science Library, Vol. 6.) Pp. xiii + 282. (Dordrecht: D. Reidel Publishing Company, 1966.) 52 D. florins.
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