LB 3459, a short-period eclipsing binary system containing two O-type subdwarfs

Details LB 3459, a short-period eclipsing binary system containing two O-type subdwarfs LB 3459, a short-period eclipsing binary system containing two O-type subdwarfs

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.183..523k&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 183, May 1978, p. 523-531.

Astronomy and Astrophysics

Astronomy

25

Eclipsing Binary Stars, Light Curve, O Stars, Stellar Spectrophotometry, Subdwarf Stars, Magellanic Clouds, Periodic Variations, Stellar Envelopes, Stellar Magnitude, Stellar Spectra, Ubv Spectra

Scientific paper

High-speed and uvby photometry of LB 3459, an extremely blue foreground star in the field of the LMC, is reported. These and previous observational data indicate that the system is composed of two well-separated subdwarf O type stars revolving in circular orbits. The period is reasonably well determined and the components are not intrinsically variable. An evolutionary scenario for such a system must presumably involve the notion of binary systems in common envelopes.

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