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Title: Transit timing variations in eccentric hierarchical triple exoplanetary systems: I. Perturbations on the time scale of the orbital period of the perturber
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Aims. We study the long-term time scale (i.e. period comparable to the orbital period of the outer perturber object) transit timing variations (TTVs) in transiting exoplanetary systems that contain another more distant (a ...
Title: Narrative identities
Title: KIC 7177553: A Quadruple System of Two Close Binaries
Author: ; ; ; ; ; ;
KIC 7177553 was observed by the Kepler satellite to be an eclipsing eccentric binary star system with an 18-day orbital period. Recently, an eclipse timing study of the Kepler binaries has revealed eclipse timing variations ...