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Asteroseismic effects in close binary stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 Turbulent processes in the convective envelopes of the sun and stars have been shown to be a source of internal acoustic excitations. In single stars, acoustic waves having frequencies below a certain cutoff frequency propagate nearly adiabatically and ...
Shaviv, Nir J., Springer, Ofer M.
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The Formation of Close Binary Stars [PDF]
Symposium - International Astronomical Union, 2001 I review the possible formation mechanisms of close binary stars. The formation of close binary systems is problematic in that there is no theory that does not encounter significant difficulties or unknowns. Fission does not appear to occur in stars.
I. A. Bonnell
semanticscholar +4 more sources
Asteroseismology of close binary stars [PDF]
Proceedings of the International Astronomical Union, 2007 In this review paper, we summarise the goals of asteroseismic studies of close binary stars. We first briefly recall the basic principles of asteroseismology, and highlight how the binarity of a star can be an asset, but also a complication, for the ...
Aerts +25 more
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Quantitative spectroscopy of close binary stars [PDF]
Proceedings of the International Astronomical Union, 2011 The method of spectral disentangling has now created the opportunity for studying the chemical composition in previously inaccessible components of binary and multiple stars.
Brogaard +35 more
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Ultraviolet Observations of Close Binary Stars [PDF]
Symposium - International Astronomical Union, 1980 In this paper, we present far ultraviolet observations of three interacting binary stars (HR 2142, HR 7084, and λ Tauri). All stars exhibit evidence of a gas stream and extensive mass outflow from the system. Physical parameters are derived for the gas stream in HR 2142.
R. S. Polidan, G. J. Peters
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Evidence for Prolonged Main Sequence Stellar Evolution of F Stars in close binaries [PDF]
, 2001 Binary F stars exhibit large brightness anomaly, which is defined here as the difference between the absolute magnitude from the uvby photometry and the actual absolute magnitude of the star.
A. A. Suchkov +16 more
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Terrestrial Planet Formation Surrounding Close Binary Stars [PDF]
, 2006 Disk material has been observed around both components of some young close binary star systems. It has been shown that if planets form at the right places within such disks, they can remain dynamically stable for very long times.
Lissauer, Jack J., Quintana, Elisa V.
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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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Radial Velocity Studies of Close Binary Stars. XV [PDF]
The Astronomical Journal, 2008 Radial-velocity measurements and sine-curve fits to the orbital radial velocity variations are presented for the last eight close binary systems analyzed the same way as in the previous papers of this series: QX And, DY Cet, MR Del, HI Dra, DD Mon, V868 ...
Abhyankar +60 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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