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SUMMARY:Stellar populations and dust build-up in the early Universe - Raff
 aella Schneider (University of Rome)
DTSTART:20240208T160000Z
DTEND:20240208T170000Z
UID:TALK211969@talks.cam.ac.uk
CONTACT:107123
DESCRIPTION:We are witnessing an exciting revolution in our understanding 
 of the first galaxies. JWST observations have already revealed galaxies in
  the first few hundred million years of the Universe and their detailed ch
 aracterization in terms of chemical enrichment and stellar populations\, r
 evealing galaxies as metal poor as 1% of the solar value\, and even potent
 ial traces of the first (Pop III) stars at z ≈ 6.5 - 10.5. In addition t
 o the stunning discoveries made recently by JWST\, there have also been re
 cent probes of the dust content of galaxies in the first billion years of 
 the Universe with ALMA. This is a key and rapid transition phase for the e
 volution of dust\, as galaxy evolutionary timescales become comparable wit
 h the formation timescales of dust. In this talk\, I will attempt to provi
 de some indications on the diversity of physical properties of the first g
 alaxies expected by theoretical models\, and on the current (limited) unde
 rstanding of dust enrichment at very early cosmic epochs.
LOCATION:Hoyle Lecture Theatre\, Institute of Astronomy
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