In the new study, the scientists describe a third type of outflow that combines the characteristics of the previous two: the speed of a UFO and the physical properties of a warm absorber. "We believe this is the area where the UFO comes into contact with the interstellar matter and drags it away like a snowplough," explains Serafinelli. "It is what we call an ultra-fast" dragged "outflows, because the UFO, at this stage, is penetrating into interstellar matter. A bit like the wind when pushing the sail of a boat ยป.