CLOUDY modeling suggests a diversity of ionization mechanisms for diffuse extraplanar gas R. P. V. Rautio, H. Salo, A. E. Watkins, S. Comerón and A. Venhola A&A, 691 (2024) A16 Published online: 25 October 2024 DOI: 10.1051/0004-6361/202450762