Old open clusters and the Galactic metallicity gradient: Berkeley 20, Berkeley 66 and Tombaugh 2

Author: Andreuzzi Gloria   Bragaglia Angela   Tosi Monica   Marconi Gianni  

Publisher: Oxford University Press

ISSN: 0035-8711

Source: Monthly Notices of the Royal Astronomical Society, Vol.412, Iss.2, 2011-04, pp. : 1265-1282

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Abstract