Hint something is wrong with cluster evolution model:

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Hint something is wrong with cluster evolution
model

• Largest clusters appear to evolve more slowly
  with z , but they should evolve more quickly

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• Find more distant clusters
• determine structure evolution
• Make better models of Wm versus clusters
• In principle, cluster surveys very powerful
• Proposals promise us will determine how/if
  Dark Energy pressure/density varies with z

Clusters need more work!
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Summary of densities

• CMB gt WL Wm 1.
• SNe Ia gt WL - Wm 0.3
• Clusters Wm 0.3
• In clusters Wb/WDM 1/7
• Predict from BB (He/H) Wb/WCDM 1/7
• See only about 0.5 (0.2-0.8) of predicted
  Missing baryons
• WL 0.7 , Wm 0.3, Wb 0.04 , WCDM 0.26

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• Our model all hangs together as long as we make
  stuff up
• Dark Energy,
• CDM
• Missing baryons

PREPOSTEROUS UNIVERSE
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Should be able to directly observe CDM and
missing baryons, some day!
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