478 citations · 8.9k across the 110 of their papers we have counts for
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Elemental Abundances and their Implications for the Chemical Enrichment of the Boötes~I Ultra-Faint Galaxy
Gerard Gilmore, John E. Norris, Lorenzo Monaco +3
We present a double-blind analysis of high-dispersion spectra of seven red giant members of the Boötes I ultra-faint dwarf spheroidal galaxy, complemented with re-analysis of a sim…
The Most Metal-Poor Stars. IV. The Two Populations With [Fe/H] < -3.0
John E. Norris, David Yong, M. S. Bessell +8
We discuss the carbon-normal and carbon-rich populations of Galactic halo stars having [Fe/H] < -3.0, utilizing chemical abundances from high-resolution, high-S/N model-atmosphere…
A VLT/FLAMES study of the peculiar intermediate-age Large Magellanic Cloud star cluster NGC 1846 - I. Kinematics
A. D. Mackey, G. S. Da Costa, A. M. N. Ferguson +1
In this paper we present high resolution VLT/FLAMES observations of red giant stars in the massive intermediate-age Large Magellanic Cloud star cluster NGC 1846, which, on the basi…
The Most Metal-Poor Stars. III. The Metallicity Distribution Function and CEMP Fraction
David Yong, John E. Norris, M. S. Bessell +6
We examine the metallicity distribution function (MDF) and fraction of carbon-enhanced metal-poor (CEMP) stars in a sample that includes 86 stars with [Fe/H] < -3.0, based on high-…
The Most Metal-Poor Stars. II. Chemical Abundances of 190 Metal-Poor Stars Including 10 New Stars With [Fe/H] < -3.5
David Yong, John E. Norris, M. S. Bessell +6
We present a homogeneous chemical abundance analysis of 16 elements in 190 metal-poor Galactic halo stars (38 program and 152 literature objects). The sample includes 171 stars wit…
The Most Metal-Poor Stars. I. Discovery, Data, and Atmospheric Parameters
John E. Norris, M. S. Bessell, David Yong +7
We report the discovery of 34 stars in the Hamburg/ESO Survey for metal-poor stars and the Sloan Digital Sky Survey that have [Fe/H] < -3.0. Their median and minimum abundances are…
Elemental Abundance Ratios in Stars of the Outer Galactic Disk. IV. A New Sample of Open Clusters
David Yong, Bruce W. Carney, Eileen D. Friel
We present radial velocities and chemical abundances for nine stars in the old, distant open clusters Be 18, Be 21, Be 22, Be 32, and PWM 4. For Be 18 and PWM 4, these are the firs…