Inferring the age of the universe with globular clusters

  title={Inferring the age of the universe with globular clusters},
  author={David Valcin and Jos'e Luis Bernal and Raul Jimenez and Licia Verde and Benjamin D. Wandelt},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
We present an estimate of the absolute age of 68 galactic globular clusters obtained by exploiting the distribution of stars in the full color-magnitude diagram. In particular, we jointly estimate the absolute age, distance, reddening, metallicity ([Fe/H]) and [$\alpha$/Fe] of each cluster, imposing priors motivated by independent observations; we also estimate possible systematics from stellar modeling. Our derived distances for the globular cluster sample are in agreement with those obtained… 
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