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SUMMARY:Exploring the Cold Universe: From Obscured Active Galactic Nuclei\
 , Interstellar to Circumgalactic Media at z ~ 5 - 7  - Seiji Fujimoto (Cop
 enhagen)
DTSTART:20211210T113000Z
DTEND:20211210T123000Z
UID:TALK165382@talks.cam.ac.uk
CONTACT:Martin Haehnelt
DESCRIPTION:The cosmic infrared background light is known to have energy c
 omparable to the optical background light\, suggesting the importance of i
 nfrared observations to understand the other aspect of the universe obscur
 ed by cold materials. In this seminar\, I will present our latest research
  on the formation and evolution of galaxies at z~5-7 in a wide range of sc
 ales\, including active galactic nuclei (<100 pc)\, interstellar (ISM\; ~1
 00 pc to 5 kpc)\, and circumgalactic media (CGM\; ~5-20 kpc)\, based on th
 e latest (sub)millimeter observations with ALMA and NOEMA. I will discuss 
 what is taking place in the cold side of the early universe\, highlighting
  three recent discoveries: i) CGM-scale [CII]158um gas halos\, ii) differe
 ntial 3D structures between neutral and ionized gases in the ISM\, and iii
 ) a young\, transitioning-phase quasar forming in a dust-enshrouded starbu
 rst at z=7.2.\n
LOCATION:via zoom 
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