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arxiv: 1011.3488 · v1 · pith:QZDNOL6Onew · submitted 2010-11-15 · 🌌 astro-ph.GA

Is Palomar 1 really associated with the Canis Major overdensity?

Ivo Saviane (1) , Lorenzo Monaco (1) , Matteo Correnti (2) , Piercarlo Bonifacio (3) , Doug Geisler (4) ((1) European Southern Observatory , Chile , (2) INAF Osservatorio Astronomico di Bologna , Italy
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(3) GEPI Observatoire de Paris CNRS Universite Paris Diderot France (4) Universidad de Concepcion Chile)
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keywords associatedcanisclustermajorabundanceadvanceallowsassociation
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It has recently been suggested that the peculiar cluster Pal 1 is associated to the Canis Major dwarf galaxy, which existence is still at the center of a debate. Our first measurement of the cluster's chemical abundance ratios allows us to examine this association and to advance further in the clarification of Pal 1 possible origin.

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