Low and
short-on states:
€ Faint PL continuum;
€ Narrow emission lines from: C VI, N
VI, N VII, O VII,
O VIII, Ne IX
(NeX?);
€ No
velocity broadening (within the resolution);
€ Weak
RRCs of OVII and NVII Þ photo ionized gas;
€ From
helium-like emission of Ne IX, O VII, N VI: G=(f+i)/r
~4 Þ photo ionized gas.