Discovery of a > 13 Mpc long X-ray filament between two galaxy clusters beyond three times their virial radiiJ. Dietl, F. Pacaud, T. H. Reiprich, A. Veronica, K. Migkas, C. Spinelli, K. Dolag and B. SeidelA&A, 691 (2024) A286DOI: https://doi.org/10.1051/0004-6361/202449354