The metallicity gradient of the Galactic bulge *
Monthly Notices of the Royal Astronomical SocietyPublished 15 December 1995Open access
D. Minniti, Edward W. Olszewski, J. Liebert, Simon D. M. White, John M. Hill, M. J. Irwin
Citations91
SJR quartileQ1
SJR score1.70
SNIP1.19
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Abstract
We determine metallicities for a large number of K giants at 1.5–1.7 kpc from the Galactic Centre, based on medium resolution spectra. We study the bulge metallicity gradient by comparing the present spectroscopic observations with previous metallicity determinations at Baade’s window (BW), at 0.5 kpc from the Galactic Centre. It is confirmed that: (1) there is metallicity gradient within the inner 2 kpc of the Galaxy; (2) at any given distance from the Galactic Centre, there is a large spread in metal abundances.
Keywords
Physics and Astronomy