Theoretical isochrones for globular clusters with predicted BVRI and Stromgren photometry

Details Theoretical isochrones for globular clusters with predicted BVRI and Stromgren photometry Theoretical isochrones for globular clusters with predicted BVRI and Stromgren photometry

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apjs...58..561v&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 58, Aug. 1985, p. 561-621.

Astronomy and Astrophysics

Astrophysics

515

Color-Magnitude Diagram, Globular Clusters, Stellar Evolution, Stellar Spectrophotometry, Tables (Data), Dwarf Stars, Main Sequence Stars, Milky Way Galaxy, Stellar Atmospheres, Stellar Color, Stellar Luminosity, Stellar Models, Stellar Temperature, Ubv Spectra

Scientific paper

An extensive set of stellar evolutionary isochrones and sequences is presented for critical comparisons with CCD data on Galactic globular clusters as they become available. These calculations, which are extended down to M(v) of roughly eight, incorporate a number of improvements over the models provided by VandenBerg (1983). The most significant of these, which is discussed along with the computed sequences, is the use of improved color-temperature relations for cool dwarfs for the presentation of isochrones with Johnson, Cousins, and Stromgren color indices. The application of the present calculations to the CCD color-magnitude diagrams recently produced for M4, M15, and 47 Tuc is illustrated, and the potential of infrared and Stromgren photometry for refining understanding of the Galactic globular cluster system is addressed.

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