A multi-epoch spectroscopic study of the BAL quasar APM 08279+5255: I. C IV absorption variability

D. Trevese, F. G. Saturni, F. Vagnetti +3

Broad Absorption Lines indicate gas outflows with velocities from thousands km/s to about 0.2 the speed of light, which may be present in all quasars and may play a major role in t…