Cosmological parameters.

Details Cosmological parameters. Cosmological parameters.

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999prama..53..921n&link_type=abstract

Pramāna, Vol. 53, No. 6, p. 921 - 931

Mathematics

Logic

1

Cosmological Constant, Cosmology: Baryons, Universe: Dark Matter, Universe: Hubble Constant, Universe: Age

Scientific paper

There is some consensus emerging on the values of the basic parameters of classical cosmology. The baryon number density estimated from the light element abundance or X-ray gas in galaxy clusters tends towards 5% of closure density; the dark matter content based on a number of independent methods appears to be somewhat less than half the closure density; the Hubble constant obtained from local measurements, gravitational lens or the Sunyaev Zeldovich method are all probably centred around 60 km/sec/Mpc and the age of the Universe is generally agreed to be around 14 Gyr all specified with bearable error bars. The supernova projects and CMBR anisotropy together favour a finite cosmological constant, and gravitational lens statistics support the same conclusion.

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