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Variable Intrinsic Absorption in Mrk 279
Jennifer E. Scott, Nahum Arav, Jack R. Gabel +5
We examine the variability in the intrinsic absorption in the Seyfert 1 galaxy Mrk 279 using three epochs of observations from the Far Ultraviolet Spectroscopic Explorer (FUSE) and…
Physical Conditions in Quasar Outflows: VLT Observations of QSO 2359-1241
Kirk Korista, Manuel Bautista, Nahum Arav +3
We analyze the physical conditions of the outflow seen in QSO 2359-1241 (NVSS J235953-124148), based on high resolution spectroscopic VLT observations. This object was previously s…
Measuring Column Densities in Quasar Outflows: VLT Observations of QSO 2359-1241
Nahum Arav, Maxwell Moe, Elisa Costantini +3
We present high resolution spectroscopic VLT observations of the outflow seen in QSO 2359-1241. These data contain absorption troughs from five resonance Fe II lines with a resolut…
The warm absorber in NGC 5548: The lean years
R. G. Detmers, J. S. Kaastra, E. Costantini +2
We study the variability of the warm absorber and the gas responsible for the emission lines in the Seyfert 1 galaxy NGC 5548, in order to constrain the location and physical prope…