1303.3292 (S. Bilir et al.)

A New Absolute Magnitude Calibration for Red Clump Stars    [PDF]

S. Bilir, T. Ak, S. Ak, T. Yontan, Z. F. Bostanci

We present an M_V absolute magnitude calibration including the B-V colour and [Fe/H] metallicity for the red clump stars in the globular and open clusters with a wide range of metallicities: M_V = 0.627(0.104)(B-V)o+0.046(0.043)[Fe/H]+0.262(0.111). The calibration equation is valid in the ranges 0.42<(B-V)o<1.20 mag, -1.55<[Fe/H]<+0.40 dex and 0.43View original: http://arxiv.org/abs/1303.3292