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Infrared Echelle Spectroscopy of Palomar 6 and M71
2004
Astronomical Journal
We present high-resolution infrared echelle spectroscopy for the globular clusters Palomar 6 and M71. Our mean heliocentric radial velocity of Palomar 6 is +180.6 +/- 3.2 km sec/s and is 20 km/s lower than that found by Minniti in 1995. Contrary to the previous metallicity estimates using low-resolution spectroscopy, our results show that Palomar~6 has an intermediate metallicity with [Fe/H] = -1.0 +/- 0.1 and is slightly more metal-poor than M71. Reasonable changes in the surface temperature
doi:10.1086/425047
fatcat:ojutytazzzh47a6a4jjdlvzgji