SIMBAD references

2022RNAAS...6..155P - Research Notes of the AAS, 6, 155 (2022/August-0)

Chemical Abundances for 25 JWST Exoplanet Host Stars with KeckSpec.

POLANSKI A.S., CROSSFIELD I.J.M., HOWARD A.W., ISAACSON H. and RICE M.

Abstract (from CDS):

Using a data-driven machine learning tool we report Teff, $\mathrm{log}(g)$, $v\sin (i)$, and elemental abundances for 15 elements (C, N, O, Na, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Ni, Y) for a sample of 25 exoplanet host stars targeted by JWST's first year of observations. The chemical diversity of these stars show that, while a number of their companion planets may have formed in a disk with chemistry similar to Solar, some JWST targets likely experienced different disk compositions. This sample is part of a larger forthcoming catalog that will report homogeneous abundances of ∼4500 FGK stars derived from Keck/HIRES optical spectra.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Chemical abundances - High resolution spectroscopy - Exoplanet astronomy - Exoplanet atmospheric composition - Astrometric exoplanet detection

Simbad objects: 25

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