Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.206..751l&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 206, Feb. 15, 1984, p. 751-765. Research supported by t
Astronomy and Astrophysics
Astronomy
19
Eclipsing Binary Stars, Light Curve, Stellar Spectrophotometry, Ubv Spectra, Variable Stars, Light Modulation, Radio Stars, Stellar Models
Scientific paper
An analysis is given of the light curve of SS 433 in the three photometric bands V, B and U, as observed during the three years 1979-81 in the USA, Israel and Japan, together with some published data obtained in the USSR. A strong interference between the two basic periods of the system, 164- and 13-day, has been discovered. The erratic fluctuations of the star in relative units are probably modulated in the 164-day period, but not in the 13-day one. The average (over a period of about 1 day) B-V color index of the system is constant in time up to 0.1 mag, whereas the U-B index varies in the 13-day period. A few possible implications of some of the photometric characteristics are briefly discussed in the context of binary models for the system.
Barbour M. S.
Jugaku Jun
Kemp James C.
Leibowitz Elia M.
Matsuoka Masaru
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