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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20120515T000000
DTEND;TZID=Atlantic/Canary:20120515T010000
UID:iactalks-390
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/390
CREATED:2012-05-15T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Evidence for secular evolution of disc structural parameters in bar
 red galaxies 
DESCRIPTION:Evidence for secular evolution of disc structural parameters in
  barred galaxies \nDr. Rubén Sánchez Janssen\n\nI will address the effec
 ts of bar-driven secular evolution in discs by comparing their properties 
 in a sample of nearly 700 barred and unbarred massive galaxies. Through de
 tailed structural decompositions I will show that, as a population, barred
  discs tend to have fainter central surface brightness and larger disc sca
 le lengths than those of unbarred galaxies. Bars rarely occur in high-surf
 ace brightness discs and tend to reside in moderately blue discs. These re
 sults show that bars induce noticeable evolution in the structural propert
 ies of galaxy discs, in qualitative agreement with longstanding theoretica
 l expectations.
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