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Detailed chemical compositions of planet-hosting stars a- I. Exploration of possible planet signatures

Liu, F; Yong, David; Asplund, Martin; Wang, H S; Spina, L; Acuna, L; Melendez, J; Ramirez, Ivan

Description

We present a line-by-line differential analysis of a sample of 16 planet-hosting stars and 68 comparison stars using high-resolution, high signal-to-noise ratio spectra gathered using Keck. We obtained accurate stellar parameters and high-precision relative chemical abundances with average uncertainties in T , log g, [Fe/H], and [X/H] of 15 K, 0.034 cm s , 0.012 dex, and 0.025 dex, respectively. For each planet host, we identify a set of comparison stars and examine the abundance differences...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
URI: http://hdl.handle.net/1885/276226
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/MNRAS/STAA1420
Access Rights: Open Access

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