Evidence for an age spread among the Galactic globular clusters

Details Evidence for an age spread among the Galactic globular clusters Evidence for an age spread among the Galactic globular clusters

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....98.1624s&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 98, Nov. 1989, p. 1624-1633.

Astronomy and Astrophysics

Astronomy

82

Chronology, Galactic Clusters, Galactic Evolution, Globular Clusters, Milky Way Galaxy, Astronomical Models, Horizontal Branch Stars, Luminosity

Scientific paper

The ages of the Galactic globular clusters are studied, based on a new interpretation of the observed Delta(V) and Fe/H abundance ratio values in terms of a parameterized model. The derived ages are in excellent agreement with those derived from isochrone fitting. Evidence is presented for an age spread of 5 Gyr, suggesting a prolonged epoch of globular cluster formation. It is found that younger clusters have high metallicity. The results suggest that the variations in age describe the observed variation in horizontal-branch morphology in Galactic clusters at a given metallicity.

Affiliated with

Also associated with

No associations

Rating

Evidence for an age spread among the Galactic globular clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evidence for an age spread among the Galactic globular clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for an age spread among the Galactic globular clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1612714