Oxygen-enhanced models for globular cluster stars. II - Isochrones and luminosity functions

Details Oxygen-enhanced models for globular cluster stars. II - Isochrones and luminosity functions Oxygen-enhanced models for globular cluster stars. II - Isochrones and luminosity functions

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apjs...81..163b&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 81, no. 1, July 1992, p. 163-220. Research supported by NSERC and

Statistics

Computation

316

Globular Clusters, Oxygen, Stellar Luminosity, Stellar Models, Color-Magnitude Diagram, Computational Astrophysics, Stellar Evolution, Stellar Spectrophotometry

Scientific paper

An extensive grid of isochrones and luminosity functions (LFs) for iron abundances in the range -2.26 to -0.47, current best estimates of the helium and oxygen contents, and ages from 5-8 Gyr to 18 Gyr are presented. A novel interpolation code is used to generate the isochrones and LFs. Comparisons of the isochrones are made with the observed fiducial sequences for a few Galactic globular clusters (GCs) and with a number of the Population II subdwarf standards that have accurate parallax-based distances to demonstrate that they are consistent with these data within current uncertainties. Illustrative fits of the computed luminosity functions, which are provided for several power-law mass functions, to the observed LFs recently reported in the literature for M92, M13, and 47 Tuc are also presented and discussed. The calculations are extensively tabulated and should be particularly useful for determining the ages of the GCs, and for population synthesis analysis, given that they are predicted for the entire magnitude range of -3 to 12.

Affiliated with

Also associated with

No associations

Rating

Oxygen-enhanced models for globular cluster stars. II - Isochrones and luminosity functions 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 Oxygen-enhanced models for globular cluster stars. II - Isochrones and luminosity functions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen-enhanced models for globular cluster stars. II - Isochrones and luminosity functions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1204986