The Rate of Visual Binaries among the Brightest X-Ray Stars [PDF]
В. В. Макаров
openalex +2 more sources
Orbits for 18 Visual Binaries and Two Double-line Spectroscopic Binaries Observed with HRCAM on the CTIO SOAR 4 m Telescope, Using a New Bayesian Orbit Code Based on Markov Chain Monte Carlo [PDF]
We present orbital elements and mass sums for 18 visual binary stars of spectral types B to K (five of which are new orbits) with periods ranging from 20 to more than 500 yr.
R. Mendez +3 more
semanticscholar +1 more source
Visual Binary Stars: Data to Investigate Formation of Binaries [PDF]
Statistics of orbital parameters of binary stars as well as statistics of their physical characteristics bear traces of star formation history. However, statistical investigations of binaries are complicated by incomplete or missing observational data ...
D. Kovaleva +3 more
semanticscholar +1 more source
Statistical Analysis of a Comprehensive List of Visual Binaries [PDF]
Visual binary stars are the most abundant class of observed binaries. The most comprehensive list of data on visual binaries compiled recently by cross-matching the largest catalogues of visual binaries allowed a statistical investigation of ...
D. Kovaleva +4 more
semanticscholar +1 more source
Observations of Binary Stars with the Differential Speckle Survey Instrument. IX. Observations of Known and Suspected Binaries, and a Partial Survey of Be Stars [PDF]
We report 370 measures of 170 components of binary and multiple-star systems, obtained from speckle imaging observations made with the Differential Speckle Survey Instrument at Lowell Observatory’s Discovery Channel Telescope in 2015 through 2017. Of the
E. Horch +15 more
semanticscholar +1 more source
Statistical study of visual binaries [PDF]
In this paper, some statistical distributions of wide pairs included in the Washington Double Star Catalog are investigated. Frequency distributions and testing hypothesis are derived for some basic parameters of visual binaries.
H. I. Abdel-Rahman +2 more
semanticscholar +1 more source
Mass estimates for visual binaries with incomplete orbits [PDF]
The problem of estimating the total mass of a visual binary when its orbit is incomplete is treated with Bayesian methods. The posterior mean of a mass estimator is approximated by a triple integral over orbital period, orbital eccentricity and time of ...
L. Lucy
semanticscholar +1 more source
Stellar and circumstellar properties of visual binaries in the Orion Nebula Cluster [PDF]
Context. Our general understanding of multiple star and planet formation is primarily based on observations of young multiple systems in low density regions like Tau-Aur and Oph.
S. Correia +15 more
semanticscholar +1 more source
SPECKLE INTERFEROMETRY AND ORBITS OF “FAST” VISUAL BINARIES [PDF]
Results of speckle observations at the 4.1 m SOAR telescope in 2012 (158 measures of 121 systems, 27 non-resolutions) are reported. The aim is to follow fast orbital motion of recently discovered or neglected close binaries and sub-systems.
A. Tokovinin
semanticscholar +1 more source
Is stellar multiplicity universal? Tight stellar binaries in the Orion nebula Cluster [PDF]
We present a survey for the tightest visual binaries among 0.3–2 M⊙ members of the Orion nebula Cluster (ONC). Among 42 targets, we discovered 13 new 0.025–0.15 arcsec companions. Accounting for the Branch bias, we find a companion star fraction (CSF) in
G. Duchêne +7 more
semanticscholar +1 more source

