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DTSTAMP:20260412T031155
DTSTART:20171019T113000
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URL:https://murmitoyen.com/events/vanille/udem/detail/787201-the-formation-
 and-evolution-of-massive-galaxies
LOCATION:Pavillon Roger-Gaudry \, 2900\, boul. Édouard-Montpetit\, Local M
 -415\, Montréal\, QC\, Canada
SUMMARY:The formation and evolution of massive galaxies
DESCRIPTION:Conférence de Sirio Belli\, Max Planck Institute for Extraterr
 estrial Physics
\nRésumé :Understanding how massive galaxies formed and 
 assembled their stars is one of the major challenges for extragalactic ast
 ronomy. Using the new generation of sensitive near-infrared spectrographs 
 at Keck and VLT\, we have investigated the physical properties of massive 
 quiescent galaxies at high redshift\, including their stellar kinematics\,
  star formation histories\, and gas properties. I will show how these obse
 rvations contribute to an emerging picture in which the star formation act
 ivity in massive galaxies is quenched at z~2-3 leaving compact\, rapidly r
 otating quiescent objects. By accreting smaller quiescent systems\, massiv
 e galaxies then grow in size and lose their angular momentum\, turning int
 o the giant ellipticals that we observe today. The physical mechanism that
  quenches their star formation in the first place is\, however\, still a m
 ystery.
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