TY - JOUR T1 - Outflow densities and ionization mechanisms in the NLRs of the prototypical Seyfert galaxies NGC 1068 and NGC 4151 JO - Monthly Notices of the Royal Astronomical Society UR - http://dx.doi.org/10.1093/mnras/stad1677 PY - 2023/06/12 AU - Holden LR AU - Tadhunter CN ED - DO - DOI: 10.1093/mnras/stad1677 PB - Oxford University Press (OUP) VL - 524 IS - 1 SP - 886 EP - 905 Y2 - 2024/12/23 ER -