Table 3
Results of the fit to the nuclear HeIλ 2.0581 μm line complex.
| Component | Emission | Absorption |
| v [km s-1] | 10 | −280 |
| Gaussian σ or Lorentzian HWHM [km s-1] | 160 | 404 |
| Flux [10-18 W/m2] | 7.4 | 27.1 |
| EW [Å] | 2.1 | 7.7 |
| Column density for Clos = 1 [cm-2] | 5.4 × 1012 | |
| Minimum Clos | 0.09 | |
| Column density for minimum Clos [cm-2] | 1.1 × 1014 |
Notes.The corresponding spectrum is extracted from a circular aperture with a radius of 400 mas centered on the nucleus. The fit is explained in the text. The calculation of the column density of the lower state of this transition is described in Sect. 7.2.
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