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Absolute magnitude calibration for red clump stars

Bilir, S.; Karaali, S.; Yaz Gökçe, E.

We combined the (K_s, J‑K_s) data in Laney et al. (Mon. Not. R. Astron. Soc. 419:1637, 2012) with the V apparent magnitudes and trigonometric parallaxes taken from the Hipparcos catalogue and used them to fit the $M_{K_{s}}$ absolute magnitude to a li…