290 citations · 353 across the 3 of their papers we have counts for
1 paper · 1 filter
D. -W. Kim, W. A. Barkhouse, E. R. Colmenero +11
(abridged) We have investigated 136 Chandra extragalactic sources without broad optical emission lines, including 93 galaxies with narrow emission lines (NELG) and 43 with only abs…