Mathematics – Logic
Scientific paper
Apr 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005idm..conf....1g&link_type=abstract
THE IDENTIFICATION OF DARK MATTER. Proceedings of the Fifth International Workshop. Held 6-10 September 2004 in Edinburgh, UK. E
Mathematics
Logic
1
Scientific paper
Observational cosmology experienced a dramatic paradigm shift about six years ago. The measurements of magnitude vs redshift of very distant type Ia supernovae indicated that the expansion rate of the universe is increasing. The acceleration of the universe requires the existence of a `dark energy' component that overcomes the gravitational self-attraction of matter, such as the vacuum energy density associated with the cosmological constant (Λ). Understanding the nature of dark energy, weather constant or dynamical, is among the most fundamental questions in contemporary science. Some of the most critical systematic effects involved in the use of Type Ia supernovae as distance indicators are discussed.
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