Catalog of massive close binaries (Polushina, 2004)

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Stars: Variable, Binaries: Eclipsing, Combined Data

Scientific paper

A catalogue of massive close binaries with early-type components of the main sequence was created. This catalogue includes physical, geometrical and evolution characteristics of these objects, spectral and photometrical pecularities and orbital features. The aim of this work was to research observational phenomena of gas presence around these binaries. The catalogue also contains data on radio and X-ray observations. The catalogue can be used for the creation of observational programmes, for analysis and interpretation of the binary star observational data and for statistical investigations. It contains information extracted from the database of Galactic massive close binaries (M>10M&sun;) with early type components. This database is compiled from the General Catalogue of Variable Stars (GCVS) (Kholopov et al., 1985, Cat. B/gcvs), the eighth catalogue of the orbital elements of spectroscopic binary systems (Batten et al., 1989, Cat. V/64), and the Sternberg Astronomical Institute card catalogue of variable stars and current original publications. It excludes O(f), O((f)) and WR stars and systems with relativistic objects.
The current sample includes 176 close binaries earlier than about B5. The results of systematization are in two tables.
Table 1 contains the sample list of massive close binaries with their basic data. 74 of these systems have been the subject of some spectral observations and some observations of light curves; therefore the absolute parameters of these systems may be determined.
Table 2 consists of massive close binaries with early-type components of the main-sequence catalogue, which consists of these 74 systems. They are grouped in the following configurations: detached main-sequence systems, semidetached main-sequence systems, contact systems, four groups which are combinations of these, and finally giant and supergiant systems. All variables in the present data set in
Tables 1 and 2 are arranged in the order of their names inside constellations. Greek or Latin adopted star names before variability was discovered and the very well known are arranged at the end of the list. The full electronic version of this catalogue consists of two databases. One of these is the database of observational data and of the results of theoretical analysis. The other database includes the individual bibliography and abstracts to data sources for each binary. This full version of the catalogue may be requested from the author by email (Tatyana.Polusina@usu.ru).
(3 data files).

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