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- W3100401081 endingPage "530" @default.
- W3100401081 startingPage "518" @default.
- W3100401081 abstract "We present an estimate of the global budget of baryons in all states, with conservative estimates of the uncertainties, based on all relevant information we have been able to marshal. Most of the baryons today are still in the form of ionized gas, which contributes a mean density uncertain by a factor of about 4. Stars and their remnants are a relatively minor component, comprising for our best-guess plasma density only about 17% of the baryons, while populations contributing most of the blue starlight comprise less than 5%. The formation of galaxies and of stars within them appears to be a globally inefficient process. The sum over our budget, expressed as a fraction of the critical Einstein-de Sitter density, is in the range 0.007 ≲ ΩB ≲ 0.041, with a best guess of ΩB ~ 0.021 (at Hubble constant 70 km s-1 Mpc-1). The central value agrees with the prediction from the theory of light element production and with measures of the density of intergalactic plasma at redshift z ~ 3. This apparent concordance suggests that we may be close to a complete survey of the major states of the baryons." @default.
- W3100401081 created "2020-11-23" @default.
- W3100401081 creator A5032945933 @default.
- W3100401081 creator A5040868021 @default.
- W3100401081 creator A5069474685 @default.
- W3100401081 date "1998-08-20" @default.
- W3100401081 modified "2023-10-14" @default.
- W3100401081 title "The Cosmic Baryon Budget" @default.
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