An ancient metal-poor population in M32, and halo satellite accretion in M31, identified by RR Lyrae stars

Author: Sarajedini Ata   Yang S.-C.   Monachesi A.   Lauer Tod R.   Trager S. C.  

Publisher: Oxford University Press

ISSN: 0035-8711

Source: Monthly Notices of the Royal Astronomical Society, Vol.425, Iss.2, 2012-09, pp. : 1459-1472

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