KIC 8975515: A fast-rotating (γ Dor – δ Sct) hybrid star with Rossby modes and a slower δ Sct companion in a long-period orbitA. Samadi-Ghadim, P. Lampens, D. M. Jassur and P. JofréA&A, 638 (2020) A57DOI: https://doi.org/10.1051/0004-6361/201936555