The distribution of wide binary stars on the sky [PDF]
Monthly Notices of the Royal Astronomical Society, 1989 Etude de la distribution de binaires larges de brillance intermediaire dans plusieurs champs des Poles Galactiques Nord et Sud totalisant environ 800 deg 2 . Une variete de tests statistiques est appliquee pour montrer que ces binaires ne sont pas distribuees selon une loi de Poisson, mais qu'une structure significative est apparente dans la ...
Sirpa Saarinen, Gerard Gilmore
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Hot Subdwarf Stars Identified in LAMOST DR8 with Single-lined and Composite Spectra
The Astrophysical Journal, 2023 A total of 222 hot subdwarf stars were identified with LAMOST DR8 spectra, among which 131 stars show composite spectra and have been decomposed, while 91 stars present single-lined spectra.
Zhenxin Lei +8 more
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Chemical Homogeneity of Wide Binary Systems: An Approach from Near-Infrared Spectroscopy
The Astronomical Journal, 2023 Wide binaries, with separations between the two stars from a few au to more than several thousand au, are valuable objects for various research topics in Galactic astronomy.
Dongwook Lim +4 more
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Internal Calibration of LAMOST and Gaia DR3 GSP-Spec Stellar Abundances
The Astrophysical Journal, 2023 Stellar chemical abundances are crucial and fundamental in astrophysics. However, they could suffer from substantial systematic errors according to several investigations but still lack calibrations in bulk.
Zexi Niu, Haibo Yuan, Jifeng Liu
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Testing White Dwarf Age Estimates Using Wide Double White Dwarf Binaries from Gaia EDR3
The Astrophysical Journal, 2022 White dwarf (WD) stars evolve simply and predictably, making them reliable age indicators. However, self-consistent validation of the methods for determining WD total ages has yet to be widely performed.
Tyler M. Heintz +6 more
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Widely separated binary systems of very low‐mass stars [PDF]
Astronomische Nachrichten, 2005 AbstractIn this paper we review some recent detections of wide binary brown dwarf systems and discuss them in the context of the multiplicity properties of very low‐mass stars and brown dwarfs. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Phan-Bao, N. +4 more
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A Catalogue of Nearby Wide Binary and Multiple Stars [PDF]
International Astronomical Union Colloquium, 1992 AbstractNo modern catalogue of wide binary and multiple systems (WBMS) exists for the region of the solar vicinity (stars nearer than ~22 pc), that include updated information on their membership to moving clusters and an age classification. With the aim of filling this gap, and also because of its importance for investigating the dynamical evolution ...
A. Poveda +4 more
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The Evolution of Population III and Extremely Metal-poor Binary Stars
The Astrophysical Journal, 2023 Numerical simulations have now shown that Population III (Pop III) stars can form in binaries and small clusters and that these stars can be in close proximity to each other.
Sung-Han Tsai +4 more
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Weighing the Darkness. II. Astrometric Measurement of Partial Orbits with Gaia
The Astrophysical Journal, 2023 Over the course of several years, stars trace helical trajectories as they traverse across the sky due to the combined effects of proper motion and parallax.
Jeff J. Andrews +4 more
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Double stars with wide separations in the AGK3 – II. The wide binaries and the multiple systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 12 pages, 5 figures; accepted by ...
Halbwachs, J.-L., Mayor, M., Udry, S.
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