The Metallicity-Period-Mass Diagram of low-mass exoplanets
arXiv:1903.04937 · doi:10.1093/mnras/stz664
Abstract
The number of exoplanet detections continues to grow following the development of better instruments and missions. Key steps for the understanding of these worlds comes from their characterization and its statistical studies. We explore the metallicity-period-mass diagram for known exoplanets by using an updated version of The Stellar parameters for stars With ExoplanETs CATalog (SWEET-Cat), a unique compilation of precise stellar parameters for planet-host stars provided for the exoplanet community. Here we focus on the planets with minimum mass below 30 M which seems to present a possible correlation in the metallicity-period-mass diagram where the mass of the planet increases with both metallicity and period. Our analysis suggests that the general observed correlation may be not fully explained by observational biases. Additional precise data will be fundamental to confirm or deny this possible correlation.
arXiv comment12 pages, 9 Figures, Accepted for MNRAS
References in corpus (31)
- Spectroscopic [Fe/H] for 98 extra-solar planet-host stars: Exploring the probability of planet formation
- Defining and cataloging exoplanets: The exoplanet.eu database
- Origins of Hot Jupiters
- Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
- Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program.Galactic stellar populations and planets
- The Minimum-Mass Extrasolar Nebula: In-Situ Formation of Close-In Super-Earths
- Metallicity and Temperature Indicators in M dwarf K band Spectra: Testing New & Updated Calibrations With Observations of 133 Solar Neighborhood M dwarfs
- The California-Kepler Survey. IV. Metal-rich Stars Host a Greater Diversity of Planets
- The HARPS search for southern extra-solar planets XXXIV. Occurrence, mass distribution and orbital properties of super-Earths and Neptune-mass planets
- Three regimes of extrasolar planets inferred from host star metallicities
- SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs I. New atmospheric parameters and masses for 48 stars with planets
- Spectroscopic stellar parameters for 582 FGK stars in the HARPS volume-limited sample. Revising the metallicity-planet correlation
- SOPHIE velocimetry of Kepler transit candidates XVII. The physical properties of giant exoplanets within 400 days of period
- Kepler constraints on planets near hot Jupiters
- Stellar Parameters and Metallicities of Stars Hosting Jovian and Neptunian Mass Planets: A Possible Dependence of Planetary Mass on Metallicity
- Warm Jupiters are less lonely than hot Jupiters: close neighbours
- Revealing A Universal Planet-Metallicity Correlation For Planets of Different Sizes Around Solar-Type Stars
- Prospecting in late-type dwarfs: a calibration of infrared and visible spectroscopic metallicities of late-K and M dwarfs spanning 1.5 dex
- The HARPS search for southern extra-solar planets V. A 14 Earth-masses planet orbiting HD 4308
- The Metallicities of Stars With and Without Transiting Planets
- M-dwarf metallicities - A high-resolution spectroscopic study in the near infrared
- SWEET-Cat updated. New homogenous spectroscopic parameters
- ARES+MOOG - a practical overview of an EW method to derive stellar parameters
- Formation, Orbital and Internal Evolutions of Young Planetary Systems
- Effects of Unseen Additional Planetary Perturbers on Compact Extrasolar Planetary Systems
- Dependence of Small Planet Frequency on Stellar Metallicity Hidden by Their Prevalence
- An upper boundary in the mass-metallicity plane of exo-Neptunes
- Rapid Formation of Saturn after Jupiter Completion
- The Occurrence of Additional Giant Planets Inside the Water-Ice Line in Systems with Hot Jupiters: Evidence Against High-Eccentricity Migration
- Orbital migration induced by anisotropic evaporation. Can hot Jupiters form hot Neptunes ?
- No Metallicity Correlation Associated with the Kepler Dichotomy
Cited by in corpus (15)
- SWEET-Cat 2.0: The Cat just got SWEETer; Higher quality spectra and precise parallaxes from GAIA eDR3
- Influence of sub- and super-solar metallicities on the compositions of solid planetary building blocks
- The Impact of Metallicity on the Evolution of Rotation and Magnetic Activity of Sun-Like Stars
- NIRPS joining HARPS at ESO 3.6 m. On-sky performance and science objectives
- Occurrence rates of small planets from HARPS: Focus on the Galactic context
- The Influence of 10 Unique Chemical Elements in Shaping the Distribution of Kepler Planets
- Exoplanets Across Galactic Stellar Populations with PLATO: Estimating Exoplanet Yields Around FGK Stars for the Thin Disk, Thick Disk and Stellar Halo
- Predicting the water content of interstellar objects from galactic star formation histories
- The GALAH Survey: Using Galactic Archaeology to Refine our Knowledge of TESS Target Stars
- Elemental Abundances of Kepler Objects of Interest in APOGEE DR17
- Where in the Milky Way Do Exoplanets Preferentially Form?
- Revisiting the Planet Mass and Stellar Metallicity Relation for Low-Mass Exoplanets Orbiting GKM Class Stars
- OGLE-2017-BLG-1434Lb: Confirmation of a Cold Super-Earth using Keck Adaptive Optics
- Searching for the nature of stars with debris disks and planets
- Estimation of the Total Mass of 10 Exoplanets and their Host Stars Based on the Primary Transit Method