Title | The distance to the Sagittarius dwarf spheroidal galaxy from the red giant branch tip |
Authors | Monaco, L.; Bellazzini, M.; Ferraro, F. R.; Pancino, E. |
Bibcode | 2004MNRAS.353..874M Search ADS ↗ |
Abstract | We derived the distance to the central region of the Sagittarius (Sgr) dwarf spheroidal galaxy from the red giant branch tip. The obtained distance modulus is (m-M)0= 17.10 +/- 0.15, corresponding to a heliocentric distance D= 26.30 +/- 1.8Kpc. This estimate is in good agreement with the distance obtained from RR Lyrae (RR Ly) stars of the globular cluster M 54, located in the core of the Sgr galaxy, once the most accurate estimate of the cluster metallicity and the most recent calibration of the MV(RRLy) versus [Fe/H] relation are adopted. |
Objects | 1 Objects Search NED ↙ |