SZ Cam - early-type eclipsing binary with a third body

Details SZ Cam - early-type eclipsing binary with a third body SZ Cam - early-type eclipsing binary with a third body

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...288l..13m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 288, no. 1, p. L13-L16

Astronomy and Astrophysics

Astrophysics

22

Eclipsing Binary Stars, Line Spectra, O Stars, Open Clusters, Stellar Spectra, Eccentricity, Light Curve, Radial Velocity, Spectrum Analysis, Stellar Luminosity, Stellar Orbits, Stellar Spectrophotometry, Stellar Temperature

Scientific paper

SZ Cam is the brightest member of the open cluster NGC 1502, with known variability of its orbital period. In this paper the recently obtained high-dispersion spectra are described and new times of minima given. In the spectra, besides lines of both components, also lines of a third body are prominent. The times of minima can be explained by a light-time effect; the third body moves on a highly eccentric orbit with period of 50.7 years. Due to a large mass function and observed shifts of the third-body lines, the 'third body' is probably a binary.

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