Results 1 to 10 of about 241 (126)
The Astrophysical JournalWe report high-resolution spectroscopic monitoring and long-baseline interferometric observations with the Palomar Testbed Interferometer (PTI) of the 215 day binary system HD 174881 (K1 II-III), composed of two giant stars.
Guillermo Torres +3 more
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The Astrophysical JournalW Serpentis is an eclipsing binary system and the prototype of the Serpentid class of variable stars. These are interacting binaries experiencing intense mass transfer and mass loss.
Katherine Shepard +8 more
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An interferometric view of binary stars [PDF]
Proceedings of SPIE, 2016 Paper 9907-135 presented at SPIE ...
Henri Boffin
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Binary Star Orbits. VI. The Interferometric-spectroscopic Binary 73 Leo
The Astronomical JournalDiscordances in radial-velocity measurements of 73 Leonis, made more than a century ago, gave rise to the first suggestion that this fifth-magnitude star was a binary system, but it was 40 yr before an accurate investigation of the object commenced, and ...
Brian D. Mason +9 more
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Preliminary Orbital Elements of Four Interferometric Binary Stars [PDF]
Astronomical Journal, 2005 We present preliminary orbital elements for the four interferometric binary star systems WDS 01017+2518, 02262+3428, 02442-2530, and 11268-5310. For all stars these are the first orbits that have been published. The data are accompanied by uncertainty estimates, residuals, and ephemerides, as well as dynamical parallaxes and individual star masses.
Sebastian F. Hönig +1 more
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Speckle interferometric measurements of binary stars. VII
Astrophysical Journal, Supplement Series, 1982 Four hundred-forty measurements of 232 binary stars observed during 1981 by means of speckle interferometry with the 4-m telescope at KPNO are represented. Newly resolved systems include Xi-1 Cet, Rho Her A, HD 187321, and 59 Cyg A.
H. A. McAlister, E. M. Hendry
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High Resolution Interferometric Observations of Eclipsing Binary Stars [PDF]
Symposium - International Astronomical Union, 1994 Eclipsing binary stars are of great importance in astronomy. Now, high angular resolution measurements of eclipsing stars with the Mark III Stellar Interferometer (Shao 1988) can determine not only all of the orbital parameters, but also the luminosities and color indices of the two components, and can yield precise information for the study of the ...
M Mark Colavita +2 more
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Resolving Pleiades Binary Stars with Gaia and Speckle Interferometric Observations
The Astronomical JournalThe Pleiades is the most prominent open star cluster visible from Earth and an important benchmark for simple stellar populations unified by common origin, age, and distance.
Dmitry Chulkov +2 more
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Differential photometry of speckle-interferometric binary and multiple stars [PDF]
Astronomy and Astrophysics, 2005 A method for differential photometry of speckle-interferometric binary and multiple stars is presented. Both the accuracy and sources of systematic errors of the method are analysed. The photometric accuracy ranges between 0. m 02 and 0. m 20, depending on the atmospheric seeing, the brightness and the separation of the system components.
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Astronomical Journal, 2002 We report spectroscopic and interferometric observations of the moderately metal-poor double-lined binary system HD 195987, with an orbital period of 57.3 days. By combining our radial-velocity and visibility measurements, we determine the orbital elements and derive absolute masses for the components of MA = 0.844 ± 0.018 M⊙ and MB = 0.6650 ± 0.0079 M⊙
Guillermo Torres +4 more
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