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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20141105T103000
DTEND;TZID=Atlantic/Canary:20141105T113000
UID:iactalks-683
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/683
CREATED:2014-11-05T10:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Transitions from Clumpy to Smooth Galaxies over Cosmic Time 
DESCRIPTION:Transitions from Clumpy to Smooth Galaxies over Cosmic Time \nP
 rof. Debra Meloy Elmegreen\n\nGalaxies at redshifts z~2-5 are dominated by
  clumpy morphologies instead  of the more familiar elliptical and spiral t
 ypes seen in the local  Universe. The clumpy galaxies are gas-rich and hig
 hly turbulent, with  star-forming regions 100 times more massive than in t
 oday’s galaxies.  Clumpy galaxies should evolve into spirals and bar
 red spirals when the  disks become less turbulent. We find transitional ty
 pes midway between  clumpy and spiral, primarily around z~1-2. We observed
  local analogs of  these transitional spirals in the Kiso Survey of Ultrav
 iolet Galaxies,  whose clumps are comparable in mass and surface density t
 o the clumps at  high redshift. We also find local analogs of high redshif
 t tadpole  galaxies, whose measured low metallicities in star-forming regi
 ons  suggest ongoing external gas accretion.
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