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SUMMARY:Tomographic cross-correlation of the CMB lensing and galaxy cluste
 ring - systematic errors from cross-talk between redshift bins of galaxies
DTSTART;VALUE=DATE-TIME:20230601T132500Z
DTEND;VALUE=DATE-TIME:20230601T135000Z
DTSTAMP;VALUE=DATE-TIME:20260809T135257Z
UID:indico-contribution-982@cern.ch
DESCRIPTION:Speakers: Pawel BIELEWICZ ()\nThe effect of gravitational lens
 ing of the cosmic microwave background (CMB) provides a unique opportunity
  to obtain a picture of the gravitational potential of the large-scale str
 ucture of the Universe at very high redshifts. Tomographic cross-correlati
 on of the gravitational potential with other tracers of the large-scale st
 ructure at known redshifts allows tracing the evolution of the structure a
 nd testing cosmological models. However\, the analysis of upcoming data wi
 ll require a very good understanding of any systematic errors that may bia
 s cross-correlation measurements. In this talk we will present studies of 
 systematic errors arising from cross-talk between redshift bins of galaxie
 s with photometric redshift uncertainties. We show their impact on the cro
 ss-correlation measurement and cosmological parameter estimates for future
  data sets. We also present an efficient method for removing the errors.\n
 \nhttps://indico.unina.it/event/70/contributions/982/
LOCATION:Lisbon
URL:https://indico.unina.it/event/70/contributions/982/
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