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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20200507T103000
DTEND;TZID=Atlantic/Canary:20200507T113000
UID:iactalks-1406
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1406
CREATED:2020-05-07T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:A step further in the Stellar Populations analysis of nearby galaxi
 es: Surface Brightness Fluctuations
DESCRIPTION:A step further in the Stellar Populations analysis of nearby ga
 laxies: Surface Brightness Fluctuations\nDr. Alexandre Vazdekis\n\nUsing d
 eep photometry SBFs have been traditionally used to determine galaxy dista
 nces. We have recentlycomputed SBF spectra of stellar populations at moder
 ately high resolution,which are fully based on empirical stellar spectral 
 libraries. We show that the SBF spectraprovide new means to perform the st
 ellar population studies, which, so far, have been tackled on the basis of
  the mean properties. We find that theSBFs are able to unveil very metal-p
 oor components at the one percent level, which are not possible to disenta
 ngle with the standard analysis. In massive Early-Type Galaxies suchmetal-
 poor components correspond to the first stages in their chemicalenrichment
  and, therefore, the SBFs provide stringent constrains on their formation.
 \n \nhttps://rediris.zoom.us/j/92233220080
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