Results 251 to 260 of about 83,821 (294)

Magnetic star-planet interaction in the young exoplanet system DS Tucanae Ab

Santos Ld, Owen J, Duvvuri G, Loyd ROP, Vidotto A, Presa A, Bourrier V, King G, Airapetian V, Ehrenreich D, France K, Lendl M, Lothringer J, Nielsen L.   +13 more
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A table of orbits of visual binary stars (Errata: 6 44)

, 1926
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Masses of Visual Binary Stars

Annual Review of Astronomy and Astrophysics, 1967
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Orbits of 11 visual binary stars

New Astronomy, 2008
Abstract In this paper, the orbital elements for 11 visual binaries are given and calculated. Eight already possess orbits, but here they are recalculated. The reason is that recent measurements show higher residuals with respect to the corresponding ephemerides calculated by using the orbital elements given in the Sixth Catalog of Orbits of Visual ...
Z. Cvetković, B. Novaković, N. Todorović   +2 more
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Precise radial velocity measurements of visual binary stars

Astrophysics and Space Science, 1988
The radial Velocity of a selected number of components of visual binaries have been measured. Attention is paid to systems suspected to have third (invisible) companions. A second aim of observation are selected couples from the “Catalog of radial velocities of binary stars” by Dommanget, for which the decision between different orbits is possible by ...
S. Weichinger, K. D. Rakos
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Liminosity distribution function for visual binary stars

Astrophysics and Space Science, 1985
The ‘cosmic scatter’ of 147 of the best known visual binary stars on the Main Sequence is discussed and a new estimation of the luminosity distribution function for multiple star systems is presented. As long as the mass ratio q of a close binary is not smaller than 0.5, the distribution of close binary components is identical to the van Rhijn ...
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Star formation history: Modeling of visual binaries

New Astronomy, 2018
Abstract Most stars form in binary or multiple systems. Their evolution is defined by masses of components, orbital separation and eccentricity. In order to understand star formation and evolutionary processes, it is vital to find distributions of physical parameters of binaries.
Y.M. Gebrehiwot, S.B. Tessema, O.Yu. Malkov, D.A. Kovaleva, A.Yu. Sytov, A.V. Tutukov   +5 more
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Statistics of Young Visual Binary Stars: Implications for (Binary) Star Formation

1997
It is well known that most main sequence stars are members of binary and multiple systems (e.g. Abt 1983, Herczeg 1984). Recent survey work in nearby star forming regions (such as Taurus and Ophiuchus) has demonstrated that this is also the case for young low-mass pre-main-sequence stars (Zinnecker, Brandner, Reipurth 1992; Reipurth and Zinnecker 1993,
Hans Zinnecker, Wolfgang Brandner
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Visual binary star orbits in universal variables

Astrophysics and Space Science, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Viñuales, E., Cid, R., Elipe, A.
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Orbits of Ten Visual Binary Stars

Chinese Journal of Astronomy and Astrophysics, 2007
We present the orbits of ten visual binary stars: WDS 01015+6922, WDS 01424–0645, WDS 01461+6349, WDS 04374–0951, WDS 04478+5318, WDS 05255–0033, WDS 05491+6248, WDS 06404+4058, WDS 07479–1212, and WDS 18384+0850. We have also determined their masses, dynamical parallaxes and ephemerides.
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