Precision Cosmology
arXiv:astro-ph/0408359 · doi:10.1016/j.newar.2005.01.039
Abstract
The good agreement between large-scale observations and the predictions of the now-standard CDM theory gives us hope that this will become a lasting foundation for cosmology. After briefly reviewing the current status of the key cosmological parameters, I summarize several of the main areas of possible disagreement between theory and observation: big bang nucleosynthesis, galaxy centers, dark matter substructure, and angular momentum, updating my earlier reviews [1]. The issues in all of these are sufficiently complicated that it is not yet clear how serious they are, but there is at least some reason to think that the problems will be resolved through a deeper understanding of the complicated astrophysics involved in such processes as gas cooling, star formation, and feedback from supernovae and AGN. Meanwhile, searches for dark matter are dramatically improving in sensitivity, and gamma rays from dark matter annihilation at the galactic center may have been detected by H.E.S.S.
14 pages, 1 figure, for Proceedings of 6th UCLA Symposium on Sources and Detection of Dark Matter in the Universe, Marina del Rey, February 2004
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- Constraints on dark matter particles from theory, galaxy observations and N-body simulations
- Cold Dark Matter as Compact Composite Objects
- Tests and problems of the standard model in Cosmology
- Clustering properties of a sterile neutrino dark matter candidate
- How galaxies lose their angular momentum
- Small scale aspects of warm dark matter : power spectra and acoustic oscillations
- Free streaming in mixed dark matter
- Quantum dynamics of the black hole interior in LQC
- Sterile neutrinos produced near the EW scale I: mixing angles, MSW resonances and production rates
- Inflation, Large Branes, and the Shape of Space
- Precision Cosmology: Successes and Challenges
- Peaks in the CMBR power spectrum. II. Physical interpretation for any cosmological scenario
- The observational legacy of preon stars - probing new physics beyond the LHC
- Extended Uncertainty Principle: A Deeper Insight into the Hubble Tension?
- Testing the Equivalence Principle with Strong Lensing Time Delay Variations
- Primordial non-Gaussianities produced by features in the potential of single slow-roll inflationary models