The heavy elements mixture and the stellar cluster age

Details The heavy elements mixture and the stellar cluster age The heavy elements mixture and the stellar cluster age

2005-04-27

arxiv.org/abs/astro-ph/0504611v2

Astronomy and Astrophysics

Astrophysics

11 pages including 3 figures, added contents and references

Scientific paper

Recent analyses of solar spectroscopic data (see Asplund, Grevesse & Sauval 2004 and references therein) suggest a significative variation of the heavy elements abundance. The change of heavy mixture might affect the determination of the clusters age for two different reasons: the change of theoretical isochrones at fixed metallicity and the variation of the inferred cluster metallicity from the observed [Fe/H]. The first point is analyzed discussing the effects of updating the metal distribution on theoretical evolutionary tracks and isochrones for metallicities suitable for the galactic globular and open clusters and for the bulk population of the Large Magellanic Clouds. The maximum variation of the estimated age ($\approx$0.5 Gyr), although not negligible, is still within the present uncertainty. The second point is addressed by comparing present theoretical predictions with the very precise observational data of the Hyades cluster from the Hypparcos satellite.

Affiliated with

Also associated with

No associations

Rating

The heavy elements mixture and the stellar cluster age 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 The heavy elements mixture and the stellar cluster age, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The heavy elements mixture and the stellar cluster age will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-613721