Chemical Composition Of Bright Stars In The Northern Hemisphere: Star-Planet Connection

Abstract

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 input. 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 I, 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 $\Delta$[El/Fe] versus condensation temperature slopes, in particular, the star with the large 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.

17 pages, 8 figures. arXiv admin note: text overlap with arXiv:2005.07526

References in corpus (47)

• The Gaia mission
• The Transiting Exoplanet Survey Satellite
• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3
• galpy: A Python Library for Galactic Dynamics
• Gaia Early Data Release 3: The astrometric solution
• alpha-, r-, and s-process element trends in the Galactic thin and thick disks
• APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South
• Accurate, Empirical Radii and Masses of Planets and their Host Stars with Gaia Parallaxes
• The Milky Way's circular velocity curve between 4 and 14 kpc from APOGEE data
• CH in stellar atmospheres: an extensive linelist
• DAOSPEC: an automatic code for measuring equivalent widths in high-resolution stellar spectra
• The Gaia-ESO Survey: the Galactic Thick to Thin Disc transition
• Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars
• Tracing the formation history of giant planets in protoplanetary disks with Carbon, Oxygen, Nitrogen and Sulphur
• Line lists for the A2PI-X2Sigma+ (red) and {B2Sigma+-X2Sigma} (violet) Systems of CN, 13C14N, and 12C15N, and Application to Astronomical Spectra
• How drifting and evaporating pebbles shape giant planets I: Heavy element content and atmospheric C/O
• Atomic and Molecular Data for Optical Stellar Spectroscopy
• The Gaia-ESO Survey: the chemical structure of the Galactic discs from the first internal data release
• Chemical Enrichment and Radial Migration in the Galactic Disk -- the origin of the [$\alpha /\mathrm{Fe}]$ Double Sequence
• Observational evidence for two distinct giant planet populations
• Displacement of the Sun from the Galactic Plane
• Solar oxygen abundance
• Influence of sub- and super-solar metallicities on the compositions of solid planetary building blocks
• Heavy metal rules. I. Exoplanet incidence and metallicity
• High precision abundances in the 16 Cyg binary system: a signature of the rocky core in the giant planet
• Three Super-Earths Orbiting HD 7924
• Connecting planet formation and astrochemistry: Refractory carbon depletion leading to super-stellar C/O in giant planetary atmospheres
• A Unified tool to estimate Distances, Ages and Masses (UniDAM) from spectrophotometric data
• Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program IV. Carbon and C/O ratios for Galactic stellar populations and planet hosts
• CNO behaviour in planet-harbouring stars. II. Carbon abundances in stars with and without planets using the CH band
• Gaia Early Data Release 3: Updated radial velocities from Gaia DR2
• Detailed chemical compositions of planet hosting stars: I. Exploration of possible planet signatures
• High-resolution Spectroscopic Study of Dwarf Stars in the Northern Sky: Lithium, Carbon, and Oxygen Abundances
• Exoplanets in the Galactic context: Planet occurrence rates in the thin disk, thick disk and stellar halo of Kepler stars
• Deciphering the evolution of the Milky Way discs: Gaia APOGEE Kepler giant stars and the Besançon Galaxy Model
• Detailed elemental abundances of binary stars: Searching for signatures of planet formation and atomic diffusion
• High-precision analysis of binary stars with planets. I. Searching for condensation temperature trends in the HD 106515 system
• Planetary companions in K giants beta Cancri, mu Leonis, and beta Ursae Minoris
• Chemical Composition of Bright Stars in the Continuous Viewing Zone of the TESS Space Mission
• Spectroscopy of Dwarf Stars Around the North Celestial Pole
• A collage of small planets from the Lick Carnegie Exoplanet Survey : Exploring the super-Earth and sub-Neptune mass regime
• The GALAH Survey: Using Galactic Archaeology to Refine our Knowledge of TESS Target Stars
• Resilient habitability of nearby exoplanet systems
• Mg/Si mineralogical ratio of low-mass planet hosts. Correction for the NLTE effects
• Modeling stellar abundance patterns resulting from the addition of earthlike planetary material
• Chemical composition of stars with massive planets

Cited by in corpus (13)

• The GAPS Programme with HARPS-N at TNG. XXXV. Fundamental properties of transiting exoplanet host stars
• Setting the stage for the search for life with the Habitable Worlds Observatory: Properties of 164 promising planet survey targets
• Emission line variability of young 10-30 Mjup companions : I. The case of GQ Lup b and GSC 06214-00210 b
• Ariel stellar characterisation: I -- homogeneous stellar parameters of 187 FGK planet host stars Description and validation of the method
• Galactic chemical evolution of exoplanet host stars: Are high-mass planetary systems young?
• Luminaries in the Sky: The TESS Legacy Sample of Bright Stars. I. Asteroseismic detections in naked-eye main-sequence and sub-giant solar-like oscillators
• Ariel stellar characterisation II. Chemical abundances of carbon, nitrogen, and oxygen for 181 planet-host FGK dwarf stars
• Chemical composition of planetary hosts: C, N, and $\alpha$-element abundances
• The peculiar composition of the Sun is not related to giant planets
• Chemical composition of planetary hosts: II. Abundances of neutron-capture elements
• Calibration of the [C/N] and [Y/Mg] chemical clocks with asteroseismic ages from the TESS space mission
• Modelling the Milky Way's exoplanet population based on cosmological galaxy simulations
• Chemical Abundances Shape History (CASH). I. A Link between Giant Planets Orbital Periods and Host Stellar C/O Ratios