Cosmological parameters for a homogeneous universe |
| |
| Institution: | 1. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA;2. Massachusetts Institute of Technology, Cambridge, MA 02139–4307, USA;3. Universit´e Pierre et Marie Curie, UPMC - Paris 06, France;4. IMCCE, Observatoire de Paris, CNRS UMR 8028, 77 Avenue Denfert-Rochereau, 75014 Paris, France;5. Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095–1567, USA |
| |
| Abstract: | We review the status of attempts to measure the present cosmological expansion rate H0 and to estimate the cosmological density parameters for neutrinos baryons, nonrelativistic matter and vacuum energy. While the total density appears to have a `reasonable' value near the critical density, the four components have mysterious values that require an explanation from fundamental physics. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
