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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20151203T103000
DTEND;TZID=Atlantic/Canary:20151203T113000
UID:iactalks-852
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/852
CREATED:2015-12-03T10:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Constraints on the stellar IMF of early-type galaxies from optical 
 and NIR spectral features
DESCRIPTION:Constraints on the stellar IMF of early-type galaxies from opti
 cal and NIR spectral features\nDr. Francesco La Barbera\n\nUnderstanding t
 he stellar initial mass function (IMF) is a key aspect to obtain a complet
 e picture of galaxy formation and evolution. In the past years, we have ca
 rried out a systematic census of the IMF in the unresolved stellar populat
 ions of (massive) early-type galaxies (ETGs), using optical and NIR spectr
 oscopy from different surveys (e.g.  SDSS, CALIFA) and dedicated obse
 rving programmes (OSIRIS@GTC, XSHOOTER@VLT).  I will present results 
 on a non-universal IMF in ETGs - pointing to an excess of low-mass stars i
 n high-, relative to low-, mass galaxies - and current constraints on the 
 physical driver behind the IMF variations.
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