Determination of Cosmological Parameters

Details Determination of Cosmological Parameters Determination of Cosmological Parameters

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ppu..conf...37f&link_type=abstract

PARTICLE PHYSICS AND THE UNIVERSE. Proceedings of Nobel Symposium 109. Held 20-25 August 1998 in Haga Slott, Enköping, Sweden. E

Physics

Scientific paper

Rapid progress has been made recently toward the measurement of cosmological parameters. Still, there are areas remaining where future progress will be relatively slow and difficult, and where further attention is needed. In this review, the status of measurements of the matter density (Ωm), the vacuum energy density or cosmological constant (ΩΛ), the Hubble constant (H0), and ages of the oldest measured objects (t0) are summarized. Many recent, independent dynamical measurements are yielding a low value for the matter density (Ωm ~ 0.3). New evidence from type Ia supernovae suggests that ΩΛ may be non-zero. Many recent Hubble constant measurements appear to be converging in the range of 65-75 km/s/Mpc. Eliminating systematic errors lies at the heart of accurate measurements for all of these parameters; as a result, a wide range of cosmological parameter space is currently still open. Fortunately, the prospects for accurately measuring cosmological parameters continue to increase and there is good reason for optimism that success may shortly be forthcoming.

Affiliated with

Also associated with

No associations

Rating

Determination of Cosmological Parameters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Determination of Cosmological Parameters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of Cosmological Parameters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1094015