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The Fate of Exoplanets and the Red Giant Rapid Rotator Connection
Joleen K. Carlberg, Steven R. Majewski, Phil Arras +3
We have computed the fate of exoplanet companions around main sequence stars to explore the frequency of planet ingestion by their host stars during the red giant branch evolution.…
The Space Interferometry Mission Astrometric Grid Giant-Star Survey. III. Basic Stellar Parameters for an Extended Sample
Dmitry Bizyaev, Verne V. Smith, Katia Cunha
We present results of high resolution (~ 55000) spectral observations of 830 photometrically pre-selected candidate red giants in the magnitude range of V = 9-12. We develop a pipe…
The Super Lithium-Rich Red Giant Rapid Rotator G0928+73.2600: A Case for Planet Accretion?
Joleen K. Carlberg, Verne V. Smith, Katia Cunha +2
We present the discovery of a super lithium-rich K giant star, G0928+73.2600. This red giant (T_eff = 4885 K and log g = 2.65) is a fast rotator with a projected rotational velocit…
Metallicities of Planet Hosting Stars: A Sample of Giants and Subgiants
L. Ghezzi, K. Cunha, S. C. Schuler +1
This work presents a homogeneous derivation of atmospheric parameters and iron abundances for a sample of giant and subgiant stars which host giant planets, as well as a control sa…
Stellar Parameters and Metallicities of Stars Hosting Jovian and Neptunian Mass Planets: A Possible Dependence of Planetary Mass on Metallicity
L. Ghezzi, K. Cunha, V. V. Smith +3
The metal content of planet hosting stars is an important ingredient which may affect the formation and evolution of planetary systems. Accurate stellar abundances require the dete…
The Chemical Evolution of the Monoceros Ring/Galactic Anticenter Stellar Structure
Mei-Yin Chou, Steven R. Majewski, Katia Cunha +3
The origin of the Galactic Anticenter Stellar Structure (GASS) or "Monoceros ring" --- a low latitude overdensity at the edge of the Galactic disk spanning at least the second and…