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SUMMARY:Cosmology on the plane of density perturbations - Oliver Friedrich
  (Kavli Institute)
DTSTART:20200902T123000Z
DTEND:20200902T130000Z
UID:TALK150355@talks.cam.ac.uk
CONTACT:Emma Curtis Lake
DESCRIPTION:At any given scale and time\, standard analyses of the large-s
 cale structure of the Universe only extract 3 numbers from the cosmic gala
 xy density and matter density fluctuations: their two variances and their 
 covariance. In the late Universe\, these 3 numbers are smooth functions of
  time and scale and lead to featureless signals that only poorly distingui
 sh between between cosmological signatures and signatures of poorly unders
 tood astrophysics\, poorly understood non-linear dynamics and systematic e
 ffects. In the talk I will demonstrate how to lift these limitations by an
 alysing the full shape of the joint probability distribution function (PDF
 ) of galaxy density and matter density fluctuations. I will also introduce
  the publicly available software toolkit CosMomentum which has been develo
 ped in Cambridge and is able to analyse the full shape of this PDF in real
 istic data.
LOCATION: Webinar  (via Zoom online)
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