BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:The Restless Afterlife of Planetary Systems - Hiba tu Noor (UCL)
DTSTART:20251118T130000Z
DTEND:20251118T140000Z
UID:TALK240208@talks.cam.ac.uk
CONTACT:James Rogers
DESCRIPTION:As stars like the Sun evolve into white dwarfs\, their planeta
 ry systems do not simply fade into quiescence. Many white dwarfs retain un
 mistakable signatures of surviving asteroids and planets\, revealed throug
 h photospheric metal pollution and compact circumstellar debris disks. The
 se relics give us a rare opportunity to study the long-term dynamical evol
 ution of planetary material\, long after the main sequence has ended. In t
 his talk\, I will explore two complementary aspects of this picture.  Firs
 t\, I will discuss the role of wide stellar companions in delivering plane
 tary material onto white dwarfs. I will then present new results from a su
 rvey of infrared variability in dusty white dwarf debris disks\, using the
  full Spitzer and WISE archives to trace ongoing dynamical activity within
  these compact systems -- a dataset that provides a valuable legacy resour
 ce for constraining future models of white dwarf debris disks.
LOCATION:HOYLE LECTURE THEATRE + ONLINE - Details to be sent by email
END:VEVENT
END:VCALENDAR