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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:5
UID:UW-Physics-Event-5303
DTSTART:20200212T220000Z
DURATION:PT1H0M0S
DTSTAMP:20260415T040623Z
LAST-MODIFIED:20200217T170302Z
LOCATION:5280 Chamberlin
SUMMARY:Cosmology in the next Decade: Fundamental Physics\, Systematic
 s and Synergies between cosmological probes\, Theory Seminar (High Ene
 rgy/Cosmology)\, Sukhdeep Singh\, UC Berkeley
DESCRIPTION:Multi wavelength observations of the sky from a number of 
 planned and upcoming cosmological surveys will provide unprecedented o
 pportunities to understand the nature of dark energy\, dark matter\, n
 eutrinos and inflation. With the increased precision\, the effects of 
 systematic biases are becoming increasingly important\, requiring sign
 ificant improvements in our understanding of several observational and
  astrophysical processes.  The complementarity of different surveys an
 d the overlapping observations provide new opportunities to exploit th
 e synergies between different probes\, to study the fundamental physic
 s and to control the impact of several systematic biases. In my talk\,
  I will show examples of synergies between different probes from our w
 ork combining galaxy clustering and weak gravitational lensing measure
 ments to constrain parameters of cosmological models and to perform te
 sts on gravity. I will then discuss the challenges we face in combinin
 g information from increasingly larger volume surveys and some of the 
 solutions we are working on. I will also highlight the new opportuniti
 es we will have to study and mitigate the effects of systematics with 
 the examples of photometric redshifts of galaxies and the intrinsic al
 ignments of galaxy shapes.
URL:https://www.physics.wisc.edu/events/?id=5303
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