Towards early-type eclipsing binaries as extragalactic milestones: III. Physical properties of the O-type eclipsing binary OGLE LMC-ECL-21568 in a quadruple system

Mónica Taormina, R. -P. Kudritzki, B. Pilecki +8

We present the results from a complex study of an eclipsing O-type binary (Aa+Ab) with the orbital period $P_A=3.2254367$ days, that forms part of a higher-order multiple system…