Abstract
Research in observational cosmology; gives a more refined analysis of data set considered in Jackson & Dodgson (1997), including selection effects and sensitivity to redshift binning. Result is Omega_matter=0.24+0.09/-0.07 in the spatially flat case, in close accord with the most recent WMAP figures (Spergel et al 2007). Presents clear evidence of switch from acceleration to deceleration at a redshift z = 0.85, somewhat higher than the corresponding SNe Ia figure z = 0.46 (Riess 2004). Develops a mathematical/astrophysical model of ultra-compact radio sources, which lends credibility to their status as standard measuring rods.
Original language | English |
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Pages (from-to) | 1-15 |
Journal | Journal of Cosmology and Astroparticle Physics |
Volume | 11 |
DOIs | |
Publication status | Published - Nov 2004 |
Keywords
- classical tests
- cosmology
- dark matter
- cosmological
- constant experiments