| Luminosity Density |
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| • | For
some typical numbers we get: |
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| For
cosmology, even more important is the mass density. |
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| If
we have a critical universe with Omega = 1 (apparently |
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| true
but not all in baryons, or even matter), then the |
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| density
would be about 2.0x10-26 h2
kg m-3, and in solar |
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| units we
would have: |
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