Results 1 to 10 of about 1,437 (219)
Statistical study of visual binaries [PDF]
Astrophysical Bulletin, 2017 In this paper, some statistical distributions of wide pairs included in Double Star Catalogue are investigated. Frequency distributions and testing hypothesis are derived for some basic parameters of visual binaries. The results reached indicate that, it was found that the magnitude difference is distributed exponentially, which means that the majority
Abdel-Rahman, H. I. +2 more
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Asteroseismology of the visual binary 70 Ophiuchi [PDF]
Astronomy & Astrophysics, 2006 5 pages, A&A in ...
Carrier, F., Eggenberger, P.
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Visualizations of binary data: A comparative evaluation [PDF]
International Journal of Human-Computer Studies, 2003 Data visualization has the potential to assist humans in analysing and comprehending large volumes of data, and to detect patterns, clusters and outliers that are not obvious using nongraphical forms of presentation. For this reason, data visualizations have an important role to play in a diverse range of applied problems, including data exploration ...
Michael D. Lee 0001 +2 more
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On the component masses of visual binaries
Serbian Astronomical Journal, 2010 In the Sixth Catalog of Orbits of Visual Binary Stars we found those belonging to the Main Sequence to form a sample containing 432 visual binaries. Their total masses were obtained dynamically, i.e. they were calculated using the orbital elements and the new Hipparcos parallaxes.
Cvetković Zorica, Ninković S.
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Visual Binary Stars: Data to Investigate Formation of Binaries
Open Astronomy, 2016 Abstract 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 and by a number of observational selection effects.
Kovaleva D. +3 more
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The Photometry of Visual Binaries [PDF]
International Astronomical Union Colloquium, 1973 A substantial part of our understanding of the physical nature of stars rests upon observations of visual binaries. In order to secure a complete interpretation of a binary system we require these data: semi-major axis, parallax, period, magnitudes, colours, spectral types and velocities.
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Some spectroscopic observations of visual binaries [PDF]
Astrophysics and Space Science, 1965 AbstractThe use of a coudé spectrograph for securing the high-resolution spectrograms necessary to follow the slow variations of radial velocity exhibited by visual binaries is discussed. Recent observations, using the spectrograph at the coudé focus of the Dominion Astrophysical Observatory’s 48-in. reflector, are then presented for the systems ofαUMa,
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Visual discovery in multivariate binary data
SPIE Proceedings, 2010 This paper presents the concept of Monotone Boolean Function Visual Analytics (MBFVA) and its application to the medical domain. The medical application is concerned with discovering breast cancer diagnostic rules (i) interactively with a radiologist, (ii) analytically with data mining algorithms, and (iii) visually.
Boris Kovalerchuk +3 more
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The Astrophysical Journal Supplement Series, 1978 On a determine avec des observations recentes les elements orbitaux et les masses des paires ADS 1709, 2173, 3064, 3483, 3780, 7871, 8419, 10421, 11111, 12447, 12552, 12973, 15378, Φ 347 et Kpr 99.
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Herbig Ae/Be Visual Binaries [PDF]
Symposium - International Astronomical Union, 2001 We present the results of a high-angular resolution spectro-imaging survey of a sample of isolated Herbig Ae-Be (HAeBe) stars aimed at searching for close companions. The fraction of wide binaries is found to be significantly higher in HAeBe stars than in solar-mass field dwarfs, and suggests a companion star fraction possibly larger than 1.
Jérôme Bouvier, Patrice Corporon
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