SIMBAD references

We present observations of visible ([FeVII], [FeX], [FeXI], [SVIII]) and near infrared ([SIX], [SiVI], [CaVIII], [SiVII], [SiIX]) coronal lines in the Circinus galaxy. The number of detected lines, their velocity profiles, and their spatial distribution pose tight constraints on models of the coronal line region (CLR), and lead to several important conclusions. We can exclude fast shocks and hot stars (warmers) as the origin of the coronal line emission, and find convincing (although not conclusive) evidence against a hot, collisionally ionized plasma. The CLR appears to be a dense (N_e≃250cm^–3), compact (diameter≃10pc), dustless region photoionized by the nuclear continuum which must be remarkably flat (L_ν≃ν^–0.5) around 300eV.