GLOBULAR-CLUSTERS, HIPPARCOS, AND THE AGE OF THE GALAXY

Authors
Citation
N. Reid, GLOBULAR-CLUSTERS, HIPPARCOS, AND THE AGE OF THE GALAXY, Proceedings of the National Academy of Sciences of the United Statesof America, 95(1), 1998, pp. 8-12
Citations number
21
Categorie Soggetti
Multidisciplinary Sciences
ISSN journal
00278424
Volume
95
Issue
1
Year of publication
1998
Pages
8 - 12
Database
ISI
SICI code
0027-8424(1998)95:1<8:GHATAO>2.0.ZU;2-Q
Abstract
We discuss the impact of the results from the recent Hipparcos astrome tric satellite on distance estimates of galactic globular clusters. Re calibrating 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 significan tly younger cluster ages. Although the data are not yet conclusive, th e results so far point to a likely resolution of the apparent paradox of a universe younger than its constituents, without requiring signifi cant modifications to simple cosmological models.