The Demise of the Metal Poor Disk?: Spectroscopic Iron Abundances

Details The Demise of the Metal Poor Disk?: Spectroscopic Iron Abundances The Demise of the Metal Poor Disk?: Spectroscopic Iron Abundances

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....109.2068r&link_type=abstract

Astronomical Journal v.109, p.2068

Astronomy and Astrophysics

Astronomy

37

Galaxy: Stellar Content, Galaxy: Abundances

Scientific paper

High resolution spectra of metal-poor disk giants initially believed to have [Fe/II]<-1.0 have yielded generally higher abundances than had been claimed on the basis of DDO photometry. Although good agreement has been found for giants identified chemically and kinematically with the halo, most of the stars in our sample that were previously identified with the metal-poor disk are found to have abundances [Fe/H]>-1.0, typical of thick disk stars which their kinematics also match. Although we cannot convincingly explain the errors in the DDO abundances, we conclude that the disk does not contribute as significantly to the stellar population of the galaxy at [Fe/H]<-1.0 as might have been thought.

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