Results 1 to 10 of about 563,075 (357)
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 are effectively trapped below the photosphere where they are internally reflected.
Shaviv, Nir J., Springer, Ofer M.
arxiv +9 more sources
Classification of Close Binary Stars Using Recurrence Networks [PDF]
Chaos, 2019 Close binary stars are binary stars where the component stars are close enough such that they can exchange mass and/or energy. They are subdivided into semi-detached, overcontact or ellipsoidal binary stars. A challenging problem in the context of close binary stars, is their classification into these subclasses, based solely on their light curves ...
Ambika, G +2 more
arxiv +7 more sources
Surveying Planetary Nebulae Central Stars for Close Binaries: Constraining Evolution of Central Stars Based on Binary Parameters [PDF]
Galaxies, 2018 The increase in discovered close binary central stars of planetary nebulae is leading to a sufficiently large sample to begin to make broader conclusions about the effect of close binary stars on common envelope evolution and planetary nebula formation ...
Todd Hillwig
doaj +4 more sources
Microlensing of close binary stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 The gravity due to a multiple-mass system has a remarkable gravitational effect: the extreme magnification of background light sources along extended so-called caustic lines. This property has been the channel for some remarkable astrophysical discoveries over the past decade, including the detection and characterisation of extra-solar planets, the ...
Abe +29 more
arxiv +7 more sources
Asteroseismology of Close Binary Stars: Tides and Mass Transfer [PDF]
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
doaj +3 more sources
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. We have found that the anomaly inversely correlates with the binary components separation.
A. A. Suchkov +16 more
arxiv +6 more sources
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
The apsidal motion in close binary stars [PDF]
arXiv, 2001 It is usually accepted to consider an apsidal motion in binary stars as a direct confirmation that a substance inside stars is not uniformly distributed. It is shown in this paper that the apsidal motion in binary systems observation data is in a good agreement with an existence of uniform plasma cores inside stars if they consist of hydrogen-deuterium-
B. V. Vasiliev
arxiv +5 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
core +8 more sources
Dynamical origin of S-type planets in close binary stars [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Understanding the origin of planets that have formed in binary stars is fundamental to constrain theories of binary and planet formation. The planet occurrence rate in binaries with a separation $\lesssim 50$ AU is only $\sim$ one third that of wider binaries or single stars.
G. Fragione
arxiv +3 more sources