HERMES: Gamma-ray burst and gravitational wave counterpart hunter G. Ghirlanda, L. Nava, O. Salafia, F. Fiore, R. Campana, R. Salvaterra, A. Sanna, W. Leone, Y. Evangelista, G. Dilillo et al. (60 more) A&A, 689 (2024) A175 Published online: 12 September 2024 DOI: 10.1051/0004-6361/202450006