Globular Clusters, Hipparcos, and the Age of the Galaxy

Details Globular Clusters, Hipparcos, and the Age of the Galaxy Globular Clusters, Hipparcos, and the Age of the Galaxy

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pnas...95....8r&link_type=abstract

Proceedings of the National Academy of Sciences of the United States of America, Volume 95, Issue 1, pp. 8-12

Mathematics

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Scientific paper

We discuss the impact of the results from the recent Hipparcos astrometric satellite on distance estimates of galactic globular clusters. Recalibrating the clusters not only implies a relatively small change in the distance to the Large Magellanic Cloud, and hence a rescaling of several estimates of the Hubble constant, but also leads to significantly younger cluster ages. Although the data are not yet conclusive, the results so far point to a likely resolution of the apparent paradox of a universe younger than its constituents, without requiring significant modifications to simple cosmological models.

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