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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20160623T103000
DTEND;TZID=Atlantic/Canary:20160623T113000
UID:iactalks-933
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/933
CREATED:2016-06-23T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Galactic archeology of thick discs: excavating ESO 533-4 with VIMOS
  and ESO 243-49 with MUSE
DESCRIPTION:Galactic archeology of thick discs: excavating ESO 533-4 with V
 IMOS and ESO 243-49 with MUSE\nDr. Sébastien Comerón\n\nThe disc of gala
 xies is made of the superposition of a thin and a thick disc. Thick discs 
 are seen in edge-on galaxies as excesses of light a few thin disc scale-he
 ights above the mid-plane. Star formation occurs in the thin discs whereas
  thick discs are made of old stars. The formation mechanisms of thick disc
 s are under debate. Thick discs might have formed either at high redshift 
 on a short time-scale or might have been built slowly over the cosmic time
 . They may have an internal or an external origin. To solve the issue of t
 he thick disc origin we studied the kinematics and the stellar populations
  of the nearby edge-on galaxies ESO 533-4 and ESO 243-49. We present the f
 irst Integral Field Unit (IFU) spectroscopy works with enough depth and qu
 ality to study the thick discs. This was done with VIMOS@VLT and MUSE@VLT.
 \nOur results point that thick discs formed in a relatively short event at
  high redshift and that the thin disc has formed afterwards within it. We 
 also find that the thick disc stars have an internal origin as opposed to 
 have their stars accreted during encounters. The work regarding ESO 533-4 
 has recently been published in Comer?n et al. 2015, A&A, 584, 34.
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