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Detailed Abundances of the Solar Twins 16 Cygni A and B: Constraining Planet Formation Models
S. C. Schuler, K. Cunha, V. V. Smith +4
Results of a detailed abundance analysis of the solar twins 16 Cyg A and 16 Cyg B based on high-resolution, high signal-to-noise ratio echelle spectroscopy are presented. 16 Cyg B…
The First Fluorine Abundance Determinations in Extragalactic AGB Carbon Stars
C. Abia, K. Cunha, S. Cristallo +5
Fluorine (19F) abundances (or upper limits) are derived in six extragalactic AGB carbon stars from the HF(1-0) R9 line at 2.3358 mu in high resolution spectra. The stars belong to…
The Frequency of Rapid Rotation Among K Giant Stars
Joleen K. Carlberg, Steven R. Majewski, Richard J. Patterson +3
We present the results of a search for unusually rapidly rotating giant stars in a large sample of K giants (~1300 stars) that had been spectroscopically monitored as potential tar…
First Chemical Analysis of Stars in The Triangulum-Andromeda Star Cloud
Mei-Yin Chou, Steven R. Majewski, Katia Cunha +3
We undertake the first high resolution spectroscopic study of the Triangulum-Andromeda (TriAnd) star cloud --- an extended, mid-latitude Milky Way halo substructure about 20 kpc aw…
Abundances of Stars with Planets: Trends with Condensation Temperature
Simon C. Schuler, Davin Flateau, Katia Cunha +3
Precise abundances of 18 elements have been derived for ten stars known to host giant planets from high signal-to-noise ratio, high-resolution echelle spectroscopy. Internal uncert…