First release of PLATO consortium stellar limb-darkening coefficients

Abstract

We release the first grid of stellar limb-darkening coefficients (LDCs) and intensity profiles (IPs) computed by the consortium of the PLAnetary Transits and Oscillations of stars (PLATO), the next medium-class (M3) mission under development by the European Space Agency (ESA) to be launched in 2026. We have performed spectral synthesis with \texttt{TurboSpectrum} on a grid of \texttt{MARCS} model atmospheres. Finally, we adopted \texttt{ExoTETHyS} to convolve the high-resolution spectra ($R=2\times 10^5$) with the state-of-the-art response functions for all the PLATO cameras, and computed the LDCs that best approximate the convolved IPs. In addition to the PLATO products, we provide new LDCs and IPs for the Kepler mission, based on the same grid of stellar atmospheric models and calculation procedures. The data can be downloaded from the following link: \url{https://doi.org/10.5281/zenodo.7339706}.

Published on RNAAS

References in corpus (6)

• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• Density, not radius, separates rocky and water-rich small planets orbiting M dwarf stars
• Observational constraints on the origin of the elements. IV: The standard composition of the Sun
• The effect of stellar limb darkening values on the accuracy of the planet radii derived from photometric transit observations
• Properties of analytic transit light curve models
• Stellar limb darkening. A new MPS-ATLAS library for Kepler, TESS, CHEOPS, and PLATO passbands

Cited by in corpus (2)

• Limb darkening measurements from TESS and Kepler light curves of transiting exoplanets
• Exoplanets Across Galactic Stellar Populations with PLATO: Estimating Exoplanet Yields Around FGK Stars for the Thin Disk, Thick Disk and Stellar Halo