A cooling flow around the low-redshift quasar H1821+643 (2024)
Russell, H R; Nulsen, P E J; Fabian, A C; Braben, T E; Brandt, W N; Clews, L; McDonald, M; Reynolds, C S; Sanders, J S and Veilleux, S
Monthly Notices of the Royal Astronomical Society, 528(2) (pp. 1863-1878)