|Statement||Elizabeth M. Green, Pierre Demarque and Christopher R. King.|
The revised isochrones and luminosity functions (LFs) are based on the stellar evolution calculations of Mengel et al. () and Sweigart and Gross (). The revised tables comprise the most complete (as of ) isochrone grid available in both age and : E. M. Green, P. Demarque. Title: The Revised Yale Isochrones and Luminosity Functions Authors: Green, E. M., Demarque, P., & King, C. R. Journal: Bulletin of the American Astronomical Society, Vol. 16, p Bibliographic Code: BAAS G. 2Department of Astronomy, Yale University P.O. Box , New Haven, CT 3NASA Ames Research Center, Moﬀett Field, CA 4National Optical Astronomy Observatory, N. Cherry Ave, Tucson, AZ 5NASA Exoplanet Science Institute, California Institute of Technology, South Wilson Avenue, Mail Code , Pasadena, CA Green, E. M., Demarque, P., & King, C. R. , The Revised Yale Isochrones and Luminosity Functions (New Haven: Yale Univ. Obs.) ADS Google Scholar Grevesse, N., & Noels, A. , in Origin and Evolution of the Elements, ed. N. Prantzos, E. Vangioni-Flam, & M. Cassé (Cambridge: Cambridge Univ. Press),
In this paper we briefly summarize the content of extensive tabulations of theoretical isochrones, integrated magnitudes and colours, and luminosity functions at varying age and chemical composition, to be presented elsewhere. These isochrones are based on stellar models incorporating the effect of convective overshoot. Abstract. The purpose of this paper is to determine the age of two Small Magellanic Cloud (SMC) clusters, L and NGC , not only by fitting the main sequence turnoff, but by using at the same time all of the characteristic features of their colour-magnitude diagrams (C-M), and comparing the experimental and the theoretical luminosity functions. We have constructed a new set of isochrones, called the Y 2 Isochrones, that represent an update of the Revised Yale Isochrones (RYI), using improved opacities and equations of state. Helium diffusion and convective core overshoot have also been taken into consideration. This first set of isochrones (Paper 1) was for the scaled solar mixture. When combined with previously published data, we are able to construct a luminosity function over the range luminosity function as well as the top of the first ascent giant branch are consistent with expectations based on the Revised Yale Isochrones.
(). The Revised Yale Isochrones and Luminosity Functions. Yale University Obsevatory, (). The Stellar Population Histories of Elliptical Galaxies. PhD thesis. (). Third Reference Catalogue of . Abstract. The use of luminosity functions in the following areas is reviewed: (a) the determination of the helium content and ages of the globular clusters; (b) the testing of stellar structure theory; and (c) the determination of the initial mass function of globular clusters. Green, E., Demarque, P. and King, C. , The Revised Yale Isochrones and Luminosity Functions, (Yale University Observatory). Google Scholar. The code is designed for use with the Yonsei-Yale (YY) isochrones, and covers the pre-main sequence and hydrogen burning phases of evolution. The YY isochrones and luminosity functions are described in detail in papers by Yi et al. (, ; Paper 1 and Paper 3).