CCD photometry of variable stars in the Magellanic Clouds. I - The eclipsing binaries HV 2208 and HV 12634

Astronomy and Astrophysics – Astronomy

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Eclipsing Binary Stars, Magellanic Clouds, Stellar Spectrophotometry, Variable Stars, Visual Photometry, B Stars, Charge Coupled Devices, Light Curve, O Stars, Stellar Temperature, Symbiotic Stars

Scientific paper

CCD BVI photometry is presented of the light curves of the eclipsing binary stars HV 2208 in the Small Magellanic Cloud and HV 12634 in the Large Magellanic Cloud. Precisions attained are 1.5-2.0 percent. A preliminary analysis suggests that HV 2208 could comprise components similar to galactic B0.5 V and B4 III stars, with the secondary filling its Roche lobe and having lost mass, but that the OB components of HV 12634 must be hotter for their mass and radius than typical galactic stars.

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