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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20220929T103000
DTEND;TZID=Atlantic/Canary:20220929T113000
UID:iactalks-1592
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1592
CREATED:2022-09-29T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:A fierce new challenge: unveil the connection between the first gal
 axies and reionization
DESCRIPTION:A fierce new challenge: unveil the connection between the first
  galaxies and reionization\nDr. Enrico Garaldi\n\nThe formation of the fir
 st galaxies in the Universe is         the new frontier of both galaxy for
 mation and reionization         studies. In fact, we will soon directly ob
 serve primeval         galaxies thanks to the James Webb Space Telescope, 
 and witness         the reionization process through 21cm intensity mappin
 g         experiments. This unique moment in human history creates a      
    fierce new challenge, i.e. to simultaneously understand in a         un
 ique and coherent picture the processes of galaxy formation         and re
 ionization, and – crucially – their connection. The         la
 tter, in particular, has escaped past numerical efforts. In         this t
 alk I will present the first results on this front from an         years-l
 ong effort geared toward achieving such comprehensive         picture, cul
 minated in the Thesan suite of cosmological         radiation-magneto-hydr
 odynamical simulations. I will briefly         introduce the features of T
 hesan, highlighting the successes and         failures of its physical mod
 el. Thesan produces realistic galaxy         populations thanks to state-o
 f-the-art physics, including         self-consistent dust production+destr
 uction and radiation         transport. I will then show how Thesan can, f
 or the first time,         reproduce the connection between IGM and galaxi
 es, as measured         from the modulation of the Lyman-alpha flux around
  galaxies.         Finally, I will chart the way forward towards and even 
 deeper         understanding of the emergence of the first structures in t
 he         Universe.
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