COS-GTO: Old Giants

Details COS-GTO: Old Giants COS-GTO: Old Giants

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009hst..prop12040g&link_type=abstract

HST Proposal ID #12040. Cycle 18

Physics

Scientific paper

Originally identified by Eggen on the basis of their much slower motion about the Galactic center than the local standard of rest, the Arcturus Moving Group likely consists of stars captured from a disrupted satellite of our Galaxy. These stars have low metal abundances and peculiar alpha element abundances. COS spectra will be used to determine whether metal poverty changes the heating, structure, and the dynamics of the outer layers of these stars.;

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