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SUMMARY:Analyzing the Large-Scale Bulk Flow using CosmicFlows4: Increasing
  Tension with the Standard Cosmological Model
DTSTART;VALUE=DATE-TIME:20230530T090500Z
DTEND;VALUE=DATE-TIME:20230530T093000Z
DTSTAMP;VALUE=DATE-TIME:20261017T061722Z
UID:indico-contribution-954@cern.ch
DESCRIPTION:Speakers: Richard WATKINS ()\nWe present an estimate of the bu
 lk flow in a volume of radii 150 200h−1Mpc using the minimum variance (M
 V) method with data from the CosmicFlows4 (CF4) catalog. The addition of n
 ew data in the CF4 has resulted in an increase in the estimate of the bulk
  flow in a sphere of radius 150h−1Mpc relative to the CosmicFlows3 (CF3)
 . This bulk flow has less than a 0.03% chance of occurring in the Standard
  Cosmological Model (ΛCDM) with cosmic microwave background derived param
 eters. Given that the CF4 is deeper than the CF3\, we were able to use the
  CF4 to accurately estimate the bulk flow on scales of 200h−1Mpc (equiva
 lent to 266 Mpc for Hubble constant Ho = 75 km/s/Mpc) for the first time. 
 This bulk flow is in even greater tension with the Standard Model\, having
  less than 0.003% probability of occurring.\n\nhttps://indico.unina.it/eve
 nt/70/contributions/954/
LOCATION:Lisbon
URL:https://indico.unina.it/event/70/contributions/954/
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