Results 11 to 20 of about 11,343 (235)
Fundamental parameters and infrared excesses of Tycho–Gaia stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 43 pages, 50 figures, accepted ...
Iain McDonald +2 more
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Fundamental stellar parameters of benchmark stars from CHARA interferometry -- III. Giant and subgiant stars [PDF]
Astronomy & Astrophysics, 2021 Context.Large spectroscopic surveys of the Milky Way must be calibrated against a sample of benchmark stars to ensure the reliable determination of atmospheric parameters.Aims.Here, we present new fundamental stellar parameters of seven giant and subgiant stars that will serve as benchmark stars for large surveys.
I. Karovicova +5 more
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Fundamental parameters of B type stars [PDF]
Proceedings of the International Astronomical Union, 2014 AbstractFundamental parameters of 26 well-studied sharp-lined single early B-type stars in OB associations and in the field within a distance of ≤400 pc from the Sun are compared to high-precision data from detached eclipsing binaries (DEBs). Fundamental parameters are derived from accurate and precise atmospheric parameters determined earlier by us ...
María-Fernanda Nieva
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Accurate fundamental parameters of eclipsing binary stars [PDF]
Proceedings of the International Astronomical Union, 2004 The study of detached eclipsing binaries is one of the most powerful ways to investigate the properties of individual stars and stellar systems. We present preliminary masses, radii and effective temperatures for the eclipsing binary WW Aurigae, which is composed of two metallic-lined A-type stars.
J. Southworth +3 more
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Fundamental stellar parameters of benchmark stars from CHARA interferometry -- II. Dwarf stars [PDF]
Astronomy & Astrophysics, 2021 Context. Stellar models applied to large stellar surveys of the Milky Way need to be properly tested against a sample of stars with highly reliable fundamental stellar parameters. We have established a programme aiming to deliver such a sample of stars. Aims.
I. Karovicova +5 more
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Fundamental stellar parameters of benchmark stars from CHARA interferometry [PDF]
Astronomy & Astrophysics, 2020 Context.Benchmark stars are crucial as validating standards for current as well as future large stellar surveys of the Milky Way. However, the number of suitable metal-poor benchmark stars is currently limited, owing to the difficulty in determining reliable effective temperatures (Teff) in this regime.Aims.We aim to construct a new set of metal-poor ...
I. Karovicova +6 more
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Rotation: a fundamental parameter of massive stars [PDF]
Symposium - International Astronomical Union, 1997 Massive stars are rapid rotators. Equatorial rotation velocities span the range vrot = 100–400 km s−1, with B stars rotating closest to their break-up speed vcrit (Howarth et al. 1997). During the last decade, many observations have revealed unusual surface abundances that may require additional internal mixing (beyond that of simple convection and ...
Langer, Norbert +2 more
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Atmospheric and Fundamental Parameters of Eight Nearby Multiple Stars
The Astronomical Journal, 2022 Abstract We present the complete set of atmospheric and fundamental parameters, in addition to the masses, for the individual components of eight stellar systems. The list of the systems, whose orbital solutions were published recently, includes seven binaries (HIP 14524, HIP 16025, HIP 46199, HIP 47791, HIP 60444, HIP 61100, HIP 73085 ...
Abdallah M. Hussein +6 more
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Fundamental Parameters of the W Serpentis Stars [PDF]
International Astronomical Union Colloquium, 1989 AbstractApplication of digital cross-correlation spectroscopy to the spectra of the W Serpentis binaries SX Cas and RX Cas has allowed an accurate determination of the orbits and rotations of the (mass-losing) K-subgiant secondary components. The distortion of the primary radial-velocity curves due to the influence of the prominent accretion disks in ...
J. Andersen, B. Nordström
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Accurate fundamental parameters for lower main-sequence stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 34 pages, 20 figures. Accepted by MNRAS. Landscape table available online at http://users.utu.fi/luccas/IRFM/
Casagrande, L., Portinari, L., Flynn, C.
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