BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:A plausible alternative to the Planet Nine hypothesis - Antranik S
 efilian (DAMTP\, Cambridge)
DTSTART:20180220T130000Z
DTEND:20180220T140000Z
UID:TALK99070@talks.cam.ac.uk
CONTACT:Dr. Yufeng Lin
DESCRIPTION:Observational campaigns\, concurrently with the discovery of e
 xoplanets over the last two decades\, have revealed a new mystery related 
 to our own Solar system. Namely\, observations of remnant icy bodies orbit
 ing the Sun\, beyond the orbit of Neptune\, have unveiled an unexpected or
 bital behavior. As it turns out\, these small bodies - known as trans-Nept
 unian objects - exhibit clustering in the orientation of their orbits. Thi
 s peculiar spatial alignment has led to the so-called “Planet Nine” hy
 pothesis that a yet undiscovered super-Earth resides in the distant Solar 
 system and causes the observed clustering.\n\nIn this talk\, I will briefl
 y shed light on the observed signatures which promoted the aforementioned 
 hypothesis and put forward an alternative. Specifically\, I will demonstra
 te how a relatively massive disc of trans-Neptunian bodies can quench the 
 quadrupolar torquing of the giant planets\, and in the process orchestrate
  eccentric members of its population into the observed aligned state.\n
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
END:VEVENT
END:VCALENDAR