Secular changes in the orbits of the quadruple system VW LMi

Pribulla T., Puha E.,Borkovits T.,Budaj J.,Garai Z.,Guenther E.,Hambalek L.,Komzik R., Kundra E., Szabo Gy. M.,Vanko M.

Monthly Notices of the Royal Astronomical Society（2020）

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摘要

VW LMi is the tightest known quadruple system with 2 + 2 hierarchy. It consists of a W UMa-type eclipsing binary (P12 = 0.477 55 d) and another detached non-eclipsing binary (P34 = 7.93 d) orbiting around a common centre of mass in about P1234 = 355 d. We present new observations of the system extending the time baseline to study long-term perturbations in the system and to improve orbital element...

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关键词

stars: binaries: eclipsing,stars: binaries: spectroscopic,stars: individual: VW LMi

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