1. AGN photoionization of gas in companion galaxies as a probe of AGN radiation in time and direction. Issue 4 (18th December 2018) Authors: Keel, William C; Bennert, Vardha N; Pancoast, Anna; Harris, Chelsea E; Nierenberg, Anna; Chojnowski, S Drew; Moiseev, Alexei V; Oparin, Dmitry V; Lintott, Chris J; Schawinski, Kevin; Mitchell, Graham; Cornen, Claude Journal: Monthly notices of the Royal Astronomical Society Issue: Volume 483:Issue 4(2019) Page Start: 4847 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗