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SUMMARY:From pixels to robust cosmology with the Dark Energy Survey - Alex
 andra Amon\, Stanford
DTSTART:20201207T150000Z
DTEND:20201207T160000Z
UID:TALK152926@talks.cam.ac.uk
CONTACT:David Stefanyszyn
DESCRIPTION:I will present status of the cosmological combined weak lensin
 g and clustering analysis from the Dark Energy Survey (DES) using its firs
 t three years of data taken at the 4m Blanco telescope at CTIO. This analy
 sis spans the full DES footprint\, more than 4000 sq. deg. of sky\, with t
 he final shear catalogue containing more than 100 million galaxies in riz 
 photometric bands\, constituting the most powerful weak lensing dataset to
  date. The comparison of DES cosmological constraints on dark matter and d
 ark energy from WL and LSS in the low-redshift Universe to CMB constraints
  provides an unprecedented test of the standard cosmological model\, acros
 s high and low redshift. I will summarise the main challenges that weak le
 nsing analyses are susceptible to\, such as shear calibration and redshift
  estimation\, as well as the DES-Year 3 approach to account for these and 
 deliver robust cosmological constraints.\n
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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