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Elliptical motions of stars in close binary systems
Elliptical motions binary systems
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2011/1/10
Motions of stars in close binary systems with a conservative mass exchange are examined. It is shown that Paczynski-Huang model widely used now for obtaining the semi-major axis variation of a relativ...
Formation of Accretion Disks in Close-Binary Systems with Magnetic Fields
Accretion Disks Close-Binary Systems Magnetic Fields
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2011/1/10
We have developed a three-dimensional numerical model and applied it to simulate plasma flows in semi-detached binary systems whose accretor possesses a strong intrinsic magnetic field. The model is b...
Whole Earth Telescope Observations of the subdwarf B star KPD 1930+2752: A rich, short period pulsator in a close binary
stars general — oscillations individual(KPD1930+2752)
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2010/11/9
KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellip-soidal variable with a known binary period just over two hours. The companion is most likely a white dwarf and the ...
A Very Close Binary Black Hole in a Giant Elliptical Galaxy 3C 66B and its Black Hole Merger
Black Hole Giant Elliptical Galaxy 3C 66B Black Hole Merger
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2010/11/15
In recent years the possibility of measuring the temporal change of radial and transverse position of sources in the sky in real time have become conceivable thanks to the thoroughly improved techniqu...
The Occurrence and Mass Distribution of Close-in Super-Earths, Neptunes, and Jupiters
Close-in Super-Earths Neptunes Jupiters
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2010/11/9
The Occurrence and Mass Distribution of Close-in Super-Earths, Neptunes, and Jupiters.
A Revised Historical Light Curve of Eta Carinae and the Timing of Close Periastron Encounters
Solar and Stellar Astrophysics (astro-ph.SR) High Energy Astrophysical Phenomena (astro-ph.HE)
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2011/1/7
The historical light curve of the 19th century "Great Eruption" of etaCar provides a striking record of violent instabilies encountered by the most massive stars. We report and analyze newly uncovered...
An investigation of the close environment of beta Cep with the VEGA/CHARA interferometer
Solar and Stellar Astrophysics (astro-ph.SR)
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2010/12/28
High-precision interferometric measurements of pulsating stars help to characterize their close environment. In 1974, a close companion was discovered around the pulsating star beta Cep using the spec...
Quantum Cosmology Close to the Classical Big Bang Singularity and in the Semiclassical Limit
Quantum Cosmology Semiclassical Limit Big Bang Singularity
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2010/3/18
We investigate a cosmological model whose energy content is described by a Chaplygin gas represented by a scalar field $\phi$ with an associated potential producing a big bang singularity such that fo...
Close Separation Triple System QSO 1009–0252 with Discordant Redshifts:
Quasars emission lines absorption lines—individual
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2010/9/15
1009-0252 is a Quasi Stellar Object (QSO) with three components A, B, C. A, B are thought to be the result of gravitational lensing of one object, and A, C constitute a close pair with redshifts 2.74 ...
THEORETICAL STUDY OF IRRADIATION EFFECTS IN CLOSE BINARIES
Radiative transfer binaries: close
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2010/10/29
The effect of irradiation is studied in a close binary system as-suming that the secondary component is a point source, moving in a circular orbit.The irradiation e®ects are calculated on the atmo...
ACTIVE CLOSE BINARIES (CB) MODELS AND METHODS FOR INTERPRETATION OF PHOTOMETRIC OBSERVATIONS
CLOSE BINARIES PHOTOMETRIC OBSERVATIONS
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2009/4/8
An essential progress in astrophysics and CB evolution theory
started about 1970 thanks to the development of computer models enabling synthesizing
of the light curves and those of line-of-sight vel...
AN ANALYSIS OF THE LIGHT CURVES OF THE CLOSE BINARY ST IND
LIGHT CURVES CLOSE BINARY ST IND
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2009/4/3
AN ANALYSIS OF THE LIGHT CURVES OF THE CLOSE BINARY ST IND。
Photometric Modelling of Close Binary Star CN And
Close binaries stars spot active starts light curve
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2010/9/17
The results of two color photometry of active close binary CN And are presented and analyzed. The light curves of the system are obviously asymmetric, with the primary maximum brighter than the second...