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SUMMARY:The Eccentric Kozai Mechanism and its Application to Boyajian’s 
 Star - Steven Young 
DTSTART:20211117T131500Z
DTEND:20211117T134500Z
UID:TALK165757@talks.cam.ac.uk
CONTACT:Francisco Paz-C
DESCRIPTION:Planetary systems have been found to be a common occurrence ac
 ross the galaxy and consist of both planets and/or discs of planetesimals.
  The orbits of planetesimals in such discs can be perturbed by the presenc
 e of nearby massive bodies such as a distant companion star. These compani
 ons\, if sufficiently inclined and eccentric\, can excite planetesimals to
  extremely high eccentricities: an effect known as the ‘Eccentric Kozai 
 Mechanism’. These planetesimals can then pass very close to their host s
 tar\, possibly producing observable transits. This is one explanation for 
 the deep\, aperiodic dips in the light curve of Boyajian’s star which ha
 s recently been confirmed to have a wide binary companion. I will present 
 a Monte Carlo model of the Kepler field to investigate how often this mech
 anism would be expected to produce such a signature and hence how importan
 t distant stellar companions are to the evolution of planetary systems. \n
 \n
LOCATION:The Hoyle Lecture Theatre + Zoom 
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