The Surprising Absence of Absorption in the Far-Ultraviolet Spectrum of Mrk 231

S. Veilleux, M. Trippe, F. Hamann +11

Mrk 231, the nearest (z = 0.0422) quasar, hosts both a galactic-scale wind and a nuclear-scale iron low-ionization broad absorption line (FeLoBAL) outflow. We recently obtained a f…