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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20190613T103000
DTEND;TZID=Atlantic/Canary:20190613T113000
UID:iactalks-1302
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1302
CREATED:2019-06-13T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The Fundamental Metallicity Relation of Galaxies
DESCRIPTION:The Fundamental Metallicity Relation of Galaxies\nDr. Jorge San
 chez Almeida\n\nAlthough the name 'fundamental metallicity relation' (FMR)
  may sound a  bit bombastic, it really represents a fundamental relation i
 n the sense  of revealing a fundamental process in galaxy formation. Numer
 ical  simulations predict that accretion of cosmic web gas feeds star  for
 mation in star-forming galaxies. However, this solid theoretical  predicti
 on has been extremely elusive to confirm. The FMR, i.e., the  fact that ga
 laxies of the same stellar mass but larger star formation  rate (SFR) tend
  to have smaller gas-phase metallicity (Zg), is one of  the best observati
 onal supports available yet. The talk will introduce  the FMR and then pre
 sent recent results of our group showing how the FMR  emerges from a local
  anti-correlation between SFR and Zg existing in  the disks of galaxies. T
 hus, understanding the FMR is equivalent to  understanding why active star
 -forming regions tend to have low relative  metallicity. The existence of 
 the local anti-correlation SFR-vs-Zg is  found by Sanchez-Menguiano+19 ApJ
   and Sanchez Almeida+18 MNRAS, whereas  the equivalence between loca
 l and global laws is in Sanchez Almeida  & Sanchez-Menguiano 19 ApJL.
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