Stroemgren metallicity calibration: the m1, b-y relation

Details Stroemgren metallicity calibration: the m1, b-y relation Stroemgren metallicity calibration: the m1, b-y relation

2007-11-22

arxiv.org/abs/0711.3534v1

Astronomy and Astrophysics

Astrophysics

3 pages, 2 figures; to appear in Mem. Soc. Astr. Italiana, Vol. 79/2 (proceeding Cefalu' Workshop "XXI Century Challenges for

Scientific paper

We performed a new calibration of the Stroemgren metallicity index m1 based
on the b-y color of cluster red giant stars. The current
Metallicity-Index-Color relation is not linear in the color range 0.40 < b-y <
1.0, but provides iron abundances of cluster and field red giants with an
accuracy of ~ 0.25 dex.

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