Age Estimates of Globular Clusters in the Milky Way: Constraints on Cosmology

@article{Krauss2003AgeEO,
  title={Age Estimates of Globular Clusters in the Milky Way: Constraints on Cosmology},
  author={L. Krauss and B. Chaboyer},
  journal={Science},
  year={2003},
  volume={299},
  pages={65 - 69}
}
Recent observations of stellar globular clusters in the Milky Way Galaxy, combined with revised ranges of parameters in stellar evolution codes and new estimates of the earliest epoch of globular cluster formation, result in a 95% confidence level lower limit on the age of the Universe of 11.2 billion years. This age is inconsistent with the expansion age for a flat Universe for the currently allowed range of the Hubble constant, unless the cosmic equation of state is dominated by a component… Expand
247 Citations

Topics from this paper

Distances and ages of globular clusters
  • 1
  • PDF
Extragalactic globular clusters: Old spectroscopic ages and new views on their formation
  • 88
  • Highly Influenced
  • PDF
Implications of the WMAP Age Measurement for Stellar Evolution and Dark Energy
  • 20
  • PDF
The dynamical evolution of accreted star clusters in the Milky Way
  • 11
  • PDF
Reconstructing galaxy histories from globular clusters
  • 90
  • PDF
Where are the most ancient stars in the Milky Way?
  • 35
  • PDF
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 39 REFERENCES
...
1
2
3
4
...