The potential role of binary neutron star merger afterglows in multimessenger cosmology S. Mastrogiovanni, R. Duque, E. Chassande-Mottin, F. Daigne and R. Mochkovitch A&A, 652 (2021) A1 Published online: 30 July 2021 DOI: 10.1051/0004-6361/202040229