Cosmic Microwave Background and Supernova Constraints on Quintessence: Concordance Regions and Target Models
/ Caldwell, R R ; Doran, M
We perform a detailed comparison of the Wilkinson Microwave Anisotropy Probe (WMAP) measurements of the cosmic microwave background (CMB) temperature and polarization anisotropy with the predictions of quintessence cosmological models of dark energy. We consider a wide range of quintessence models, including: a constant equation-of-state; a simply-parametrized, time-evolving equation-of-state; a class of models of early quintessence; scalar fields with an inverse-power law potential. [...]
astro-ph/0305334.-
2004 - 6 p.
- Published in : Phys. Rev. D 69 (2004) 103517Access to fulltext document:PDF; External link: astro-ph/0305334 PDF
Testing dark matter with high-redshift supernovae
/ Minty, E M ; Heavens, A F ; Hawkins, M R S
Dark matter in the Universe consisting of macroscopic objects such as primordial black holes may cause gravitational lensing of distant objects. The magnification associated with lensing will lead to additional scatter in the received flux from standard candles, and too small an observed scatter could rule out compact dark matter entirely. [...]
astro-ph/0104221.-
2002 - 5 p.
- Published in : Mon. Not. R. Astron. Soc. 330 (2002) 378Access to fulltext document:PDF; External link: astro-ph/0104221 PDF