期刊
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
卷 193, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0067-0049/193/1/1
关键词
stars: abundances; stars: fundamental parameters; stars: general
资金
- National Science Foundation [AST-0307487]
- New Standard Stellar Population Models project
- [AST-0346347]
- Direct For Mathematical & Physical Scien [0838258] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [0838260] Funding Source: National Science Foundation
- Division Of Astronomical Sciences [0838258] Funding Source: National Science Foundation
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [0806732] Funding Source: National Science Foundation
A collection of Johnson/Cousins photometry for stars with known [Fe/H] is used to generate color-color relations that include the abundance dependence. Literature temperature and bolometric correction ( BC) dependences are attached to the color relations. The JHK colors are transformed to the Bessell & Brett homogenized system. The main result of this work is the tabulation of seven colors and the V-band BC as a function of T-eff, log g, and [Fe/H] for -1.06 < V - K < 10.2 and an accompanying interpolation program. Improvements to the present calibration would involve filling photometry gaps, obtaining more accurate and on-system photometry, knowing better log g and [Fe/H] values, improving the statistics for data-impoverished groups of stars such as metal-poor K dwarfs, applying small tweaks in the processing pipeline, and obtaining better empirical temperature and BC relations, especially for supergiants and M stars. A way to estimate dust extinction from M dwarf colors is pointed out.
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