BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Lensed Dusty Star-Forming Galaxies and Dark Matter Substructure - 
 Yashar Hezaveh
DTSTART:20121116T113000Z
DTEND:20121116T123000Z
UID:TALK41472@talks.cam.ac.uk
CONTACT:Sergey Koposov
DESCRIPTION:Recently\, wide-area mm/submm-wave surveys have discovered a l
 arge\, new population of strongly lensed dusty\, star-forming sources at h
 igh redshift (z~2-6). I will present ALMA resolved imaging of a sample of 
 lensed sources discovered by the South Pole Telescope\, in addition to the
  current state of lens models\, which are allowing us to learn important p
 roperties about the sources. I will show that generalizing this lens model
 ing technique to fit the velocity components of molecular lines separately
 \, effectively creating a 3D lens model of spatially resolved spectroscopi
 c data\, will drastically increase the sensitivity to the lensing signal o
 f dark matter substructure in the lens halos. Using this method\, I predic
 t that there is >55% probability of detecting a substructure in a lens wit
 h a one-hour observation with ALMA if the mass fraction of substructure is
  f=1%. Given >100 lensing systems\, this sample will be a promising place 
 to look for dark matter substructure\, and to measure the subhalo mass fun
 ction with a high statistical significance.
LOCATION:Kavli LMR\, IoA
END:VEVENT
END:VCALENDAR