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BillSaltLake
Gold Member
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All the LCDM models with variations (see http://lambda.gsfc.nasa.gov/product/map/current/parameters.cfm ) have similar ratios of dark matter: baryonic matter density of very close to 5:1.
Is this ratio determined from WMAP data such as angular size of a peak, or is it a not very tightly constrained variable or estimate taken perhaps from galactic rotation speeds?
Is this ratio determined from WMAP data such as angular size of a peak, or is it a not very tightly constrained variable or estimate taken perhaps from galactic rotation speeds?
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