Physical properties of accretion shocks toward the Class I protostellar system Oph-IRS 44 E. Artur de la Villarmois, V. V. Guzmán, J. K. Jørgensen, L. E. Kristensen, E. A. Bergin, D. Harsono, N. Sakai, E. F. van Dishoeck and S. Yamamoto A&A, 667 (2022) A20 Published online: 01 November 2022 DOI: 10.1051/0004-6361/202244312