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SUMMARY:The history of the Milky Way's bar - Jason Sanders (UCL)
DTSTART:20250214T113000Z
DTEND:20250214T123000Z
UID:TALK226237@talks.cam.ac.uk
CONTACT:Sandro Tacchella
DESCRIPTION:The emergence of barred galaxies is a sensitive indicator of t
 he conditions in the early Universe. Current cosmological simulations now 
 routinely produce realistic barred galaxies but reproducing the precise di
 stributions of morphology and properties remains challenging. One route to
  understanding how bars form and evolve is to look close to home at our ow
 n Galaxy's bar. I will describe work on measuring the epoch of bar formati
 on in the Milky Way using data from Gaia and a ground-based astrometric ca
 talogue VVV/VIRAC from the VISTA telescope. I will describe how the bar fo
 rmation can be dated by studying the star formation history in the Milky W
 ay’s nuclear stellar disc\, a central structure intimately related to th
 e bar\, and describe the broader implications of the derived bar formation
  epoch for the history of our Galaxy.
LOCATION:Ryle Seminar Room\, KICC + online
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