Transit photometry; Space telescopes; Exoplanets; Limb darkening; Stellar atmospheres; 1709; 1547; 498; 922; 1584; Astrophysics - Earth; and Planetary Astrophysics; Astrophysics - Instrumentation and Methods; for Astrophysics; Astrophysics - Solar and Stellar Astrophysics
Abstract :
[en] 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 to be launched in 2026. We have performed spectral synthesis with TurboSpectrum on a grid of MARCS model atmospheres. Finally, we adopted ExoTETHyS to convolve the high-resolution spectra (R = 2 × 10<SUP>5</SUP>) 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: https://doi.org/10.5281/zenodo.7339706.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Morello, Giuseppe; Astrophysical Institute of the Canaries, University of La Laguna, Department of Astrophysics, Astronomical Observatory of Palermo
Gerber, Jeffrey; Max-Planck-Institute for Astronomy, Heidelberg
Plez, Bertrand; Laboratoire Univers et Particules de Montpellier
Bergemann, Maria; Max-Planck-Institute for Astronomy, Heidelberg, Niels Bohr Institute for Astronomy, Physics and Geophysics
Cabrera, Juan; Helmholtz Institute for Planetary Research, Berlin
Ludwig, Hans-Günter; University of Heidelberg, Astronomical Observatory
Morel, Thierry ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Language :
English
Title :
First Release of PLATO Consortium Stellar Limb-darkening Coefficients
Publication date :
01 November 2022
Journal title :
Research notes of the American Astronomical Society