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SUMMARY:Cluster Cosmology: Game On or Game Over? - Kathy Romer (Sussex)
DTSTART:20220519T150000Z
DTEND:20220519T160000Z
UID:TALK174614@talks.cam.ac.uk
CONTACT:Dr. David Murphy
DESCRIPTION:Significant international investment over the last decade has 
 resulted\nin new cluster surveys that can deliver precise measurements of 
 key\ncosmological parameters. However\,  are those measurements accurate?\
 nRecent results from clusters detected by the Dark Energy Survey (DES)\nar
 e in significant tension with those from other cosmological probes.\nThis 
 tension is most likely due to hitherto uncorrected systematic\neffects in 
 the analysis. So is it Game On or Game Over for cluster\ncosmology? In thi
 s talk I will review the latest DES cluster cosmology\nresults and the rec
 ent work by the XMM Cluster Survey in support of that\nwork. I will also d
 escribe our  re-analysis of eROSITA data from the\neFEDS data release\, an
  exploration of anisotropy in X-ray scaling\nrelations\, and new results r
 egarding the purported 3.5keV dark matter\nline. I will end with an overvi
 ew of our plans to extend our X-ray\nCosmology work with future data relea
 ses from LSST and eROSITA.
LOCATION:Hoyle Lecture Theatre + ONLINE - Details will be sent by email
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