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SUMMARY:Spatially and temporally resolving 
the wondrous lives of galaxi
 es - Sandro Tacchella (Kavli Institute for Cosmology)
DTSTART:20220428T150000Z
DTEND:20220428T160000Z
UID:TALK172973@talks.cam.ac.uk
CONTACT:Nicolas Laporte
DESCRIPTION:Galaxies provide a unique laboratory that involves nearly all 
 branches of astrophysics. The challenge stands in unravelling a system whe
 re physical processes interact on scales spanning many orders of magnitude
 \, ranging from the formation of stars to the large-scale cosmic web domin
 ated by dark matter. The unknown physics of star formation and feedback re
 presents the main uncertainty in our understanding of the formation of the
  first galaxies after the Big Bang and their evolution to today’s mature
  systems. By spatially resolving galaxies with the Hubble Space Telescope 
 and the Very Large Telescope\, I will show how galaxies build their bulges
  during their self-regulated growth 10 billion years ago\, before they cea
 se their star formation from the inside out. Using deep Keck spectroscopy\
 , I further demonstrate that the pathways to quiescence are manifold\, cha
 llenging current galaxy formation models. I will end by discussing upcomin
 g observations with the James Webb Space Telescope\, which – together wi
 th new numerical models that include radiation – will provide long-neede
 d insights into the regulation of star formation in the early universe.\n
LOCATION:Hoyle Lecture Theatre (sign-up needed) + ONLINE - Details will be
  sent by email
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