Results 21 to 30 of about 563,075 (357)
Detached white-dwarf close-binary stars -- CV's extended family [PDF]
, 1999 I review detached binaries consisting of white dwarfs with either other white dwarfs or low mass main-sequence stars in tight orbits around them. Orbital periods have been measured for 15 white dwarf/white dwarf systems and 22 white dwarf/M dwarf systems.
Marsh, T. R.
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COMMISSION 42: CLOSE BINARY STARS [PDF]
Proceedings of the International Astronomical Union, 2008 Two meetings of interest to close binaries took place during the reporting period: A full day session on short-period binary stars – mostly CV's – (Miloneet al. 2008) during the 2006 AAS Spring meeting in Calgary and the very broadly designed IAU Symposium No.
S. M. Ruciński +13 more
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The Close Binary Fraction of Dwarf M Stars [PDF]
The Astrophysical Journal, 2012 We describe a search for close spectroscopic dwarf M star binaries using data from the Sloan Digital Sky Survey to address the question of the rate of occurrence of multiplicity in M dwarfs.
Blake, Cullen H. +2 more
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UV Observations of Close Binary Stars [PDF]
Highlights of Astronomy, 1983 Ultraviolet spectroscopic observations made with the Copernicus and IUE spacecraft have been analyzed. The observations represent a collaborative effort with G. J. Peters.Observational evidence supporting the existence of a turbulent accretion layer has been discussed earlier by Peters. Ionization equilibrium calculations suggest the following physical
R. S. Polidan
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Close binary EHB stars from SPY [PDF]
Astrophysics and Space Science, 2004 We present the results of a radial velocity (RV) survey of 46 subdwarf B (sdB) and 23 helium-rich subdwarf O (He-sdO) stars. We detected 18 (39%) new sdB binary systems, but only one (4%) He-sdO binary.
Christlieb, N. +7 more
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Radial Velocity Studies of Close Binary Stars. XI [PDF]
, 2006 Radial-velocity measurements and sine-curve fits to the orbital radial velocity variations are presented for ten close binary systems: DU Boo, ET Boo, TX Cnc, V1073 Cyg, HL Dra, AK Her, VW LMi, V566 Oph, TV UMi and AG Vir.
Ahn Y. S. +39 more
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The Evolution of Close Binaries and the Am Stars [PDF]
Highlights of Astronomy, 1968 In this paper, I shall be concerned with three related questions: (a) what is the evolutionary fate of close binary systems, (b) is this concept consistent with the number of evolved close binary systems, and (c) are these evolved systems the Am stars?
Peter S. Conti
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Close Encounters of Star - Black Hole Binaries with Single Stars
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Multibody dynamical interactions of binaries with other objects are one of the main driving mechanisms for the evolution of star clusters. It is thus important to bring our understanding of three-body interactions beyond the commonly employed point-particle approximation.
Taeho Ryu +5 more
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Radial Velocity Studies of Close Binary Stars. IV. [PDF]
, 2001 Radial velocity measurements and sine-curve fits to the orbital velocity variations are presented for the fourth set of 10 close binary systems: 44 Boo, FI Boo, V2150 Cyg, V899 Her, EX Leo, VZ Lib, SW Lyn, V2377 Oph, Anon Psc (GSC 8-324), and HT Vir. All
Wenxian Lu +2 more
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Close-In Substellar Companions and the Formation of sdB-Type Close Binary Stars
Acta Polytechnica CTU Proceedings, 2015 The sdB-type close binaries are believed to have experienced a common-envelope phase and may evolve into cataclysmic binaries (CVs). About 10% of all known sdB binaries are eclipsing binaries consisting of very hot subdwarf primaries and low-mass ...
L. Y. Zhu +4 more
doaj +3 more sources