Rubidium abundances in solar metallicity stars C. Abia, P. de Laverny, S. Korotin, A. Asensio Ramos, A. Recio-Blanco and N. Prantzos A&A, 648 (2021) A107 Published online: 21 April 2021 DOI: 10.1051/0004-6361/202040250