D. Chulkov

Publications21
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Citations87
Highly Influential Citations21
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Dynamical masses of a selected sample of orbital binaries
Orbital binary stars are essential objects for determining dynamical and physical properties of stars through a combined analysis of photometric and astrometric data. We compiled a set of orbital…
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Statistical Analysis of a Comprehensive List of Visual Binaries
Abstract 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…
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Visual Binary Stars: Data to Investigate Formation of Binaries
TLDR
The most complete list of presently known visual binary stars was compiled by cross-matching objects and combining data of the three largest catalogues of visual binaries, supplemented by the data on parallaxes, multicolor photometry, and spectral characteristics taken from other catalogues.
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Insight into Binary Star Formation via Modelling Visual Binaries Datasets
TLDR
Some preliminary results are presented which allow already to reject initial distributions of binaries over semi-major axes of the orbits more steep than ∝ aa−1.5.
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Interstellar extinction from photometric surveys: application to four high-latitude areas
Abstract Information on interstellar extinction and dust properties may be obtained from modern large photometric surveys data. Virtual Observatory facilities allow users to make a fast and correct…
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Evaluation of Binary Star Formation Models Using Well-Observed Visual Binaries
TLDR
The project aimed at finding initial distributions of binary stars over masses of components, mass ratios of them, semi-major axes and eccentricities of orbit, and also pairing scenarios by means of Monte-Carlo modeling of the sample of visual binaries of luminosity class V with a set of additional restrictions is described.
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Improved orbits and parallaxes for eight visual binaries with unrealistic previous masses using the Hipparcos parallax
Improved orbits are presented for the visual binaries WDS 02366+1227, WDS 02434-6643, WDS 03244-1539, WDS 08507+1800, WDS 09128-6055, WDS 11532-1540, WDS 17375+2419, and WDS 22408-0333. The latest…
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Verification of Photometric Parallaxes with Gaia DR2 Data
Results of comparison of Gaia DR2 parallaxes with data derived from a combined analysis of 2MASS (Two Micron All-Sky Survey), SDSS (Sloan Digital Sky Survey), GALEX (Galaxy Evolution Explorer), and…
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Pairing function of visual binary stars
An all-sky sample of 1227 visual binaries based on Washington Double Star catalogue is constructed to infer the IMF, mass ratio, and projected distance distribution with a dedicated population…
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Data for Binary Stars from Gaia DR2
TLDR
The new information for binaries from Gaia DR2 is combined and analyzed, and it is included into the Identification List of Binaries (ILB), a complete list of known binary and multiple stars.
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