160 citations · 421 across the 8 of their papers we have counts for
1 paper · 2 filters
W. Brinkmann, D. Grupe, G. Branduardi-Raymont +1
In a ~ 20 ksec XMM-Newton observation the X-ray transient radio-quiet quasar PG 0844+349 was found in a historically high state compared to previous X-ray observations. The quasar…