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SUMMARY:Galactic Archaeology in the Gaia era: a surprising population of v
 ery metal-poor stars in the Milky Way disc - Federico Sestito (Hertfordshi
 re)
DTSTART:20250221T113000Z
DTEND:20250221T123000Z
UID:TALK226234@talks.cam.ac.uk
CONTACT:Sandro Tacchella
DESCRIPTION:The history of the Universe can be revealed in the light of th
 e stars\, in particular in the oldest and the most pristine\, also called 
 metal-poor stars. From the chemical composition of these stars\, it is pos
 sible to unveil the fossil fingerprint left from the previous generations 
 of stars and open a window on the early Universe and the origins of the el
 ements. Moreover\, the kinematical properties of the most metal-poor stars
  are informative on the assembly of the Milky Way and the first structures
  in the Universe.\nIn this seminar\, I will focus on why/where to/how to i
 nvestigate the most metal-poor stars. I will discuss some of the major ach
 ievements of one of the most efficient surveys that hunts for these old st
 ars\, the Pristine survey. Then\, I will focus on a particular population 
 of very metal-poor stars that surprisingly inhabit the Milky Way plane. I 
 will discuss how this population is connected to the early formation and e
 volution of our Galaxy.
LOCATION:Ryle Seminar Room\, KICC + online
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