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SUMMARY:Extreme\, exotic\, and normal galaxies in the era of JWST - Prof. 
 Daniel Schaerer (University of Geneva\, Switzerland)
DTSTART:20231123T160000Z
DTEND:20231123T170000Z
UID:TALK206428@talks.cam.ac.uk
CONTACT:107123
DESCRIPTION:As JWST pushes the limits\, astronomers seem to discover galax
 ies with  unusual\, extreme\, or peculiar properties\, which question some
  of our  previous knowledge or potentially even pose more fundamental prob
 lems  e.g. to our standard cosmological model.\n\nWith this background I w
 ill present recent results showing evidence for  unusual stellar populatio
 ns (very massive stars\, with masses >100 Msun)  in different environments
 /galaxies. I will also discuss possible  indications for the presence of s
 upermassive stars (>~1000 Msun) in very compact galaxies and their possibl
 e link with globular-cluster \nformation. Such extreme/unusual stars might
  be more common in the early Universe and therefore important to understan
 d galaxies\, star-formation and possibly also black-hole formation at very
  high-redshift.
LOCATION:Hoyle Lecture Theatre\, Institute of Astronomy
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