SIMBAD references

2022ApJS..259...45T - Astrophys. J., Suppl. Ser., 259, 45-45 (2022/April-1)

Chemical Composition of Bright Stars in the Northern Hemisphere: Star-Planet Connection.

TAUTVAISIENE G., MIKOLAITIS S., DRAZDAUSKAS A., STONKUTE E., MINKEVICIUTE R., PAKSTIENE E., KJELDSEN H., BROGAARD K., CHORNIY Y., VON ESSEN C., GRUNDAHL F., AMBROSCH M., BAGDONAS V., SHARMA A. and VISCASILLAS VAZQUEZ C.

Abstract (from CDS):

In fulfilling the aims of the planetary and asteroseismic research missions, such as that of the NASA Transiting Exoplanet Survey Satellite (TESS) space telescope, accurate stellar atmospheric parameters and a detailed chemical composition are required as inputs. We have observed high-resolution spectra for all 848 bright (V < 8 mag) stars that are cooler than F5 spectral class in the area up to 12 deg surrounding the northern TESS continuous viewing zone and uniformly determined the main atmospheric parameters, ages, orbital parameters, velocity components, and precise abundances of up to 24 chemical species (C(C2), N(CN), [O I], Na I, Mg I, Al I, Si I, Si II, Ca I, Ca II, Sc I, Sc II, Ti I, Ti II, V I, Cr I, Cr II, Mn I, Fe I, Fe II, Co I, Ni I, Cu I, and Zn I) for 740 slowly rotating stars. The analysis of 25 planet-hosting stars in our sample drove us to the following conclusions: the dwarf stars hosting high-mass planets are more metal rich than those with low-mass planets. We find slightly negative C/O and Mg/Si slopes toward the stars with high-mass planets. All the low-mass planet hosts in our sample show positive Δ[El/Fe] versus condensation temperature slopes, in particular, the star with the largest number of various planets. The high-mass planet hosts have a diversity of slopes, but in more metal-rich, older, and cooler stars, the positive elemental abundance slopes are more common.

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

Journal keyword(s): High resolution spectroscopy

VizieR on-line data: <Available at CDS (J/ApJS/259/45): tablea1.dat>

Simbad objects: 799

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2022ApJS..259...45T and select 'bookmark this link' or equivalent in the popup menu