Table 2.
Fluxes of all detected emission lines in the nuclear, circumnuclear, and central spectra of NGC 6552.
| Line | λlab | FNuclear | FCircum. | Fcentral |
|---|---|---|---|---|
| [μm] | [ × 10−15 erg s−1 cm−2] | |||
| (1) | (2) | (3) | (4) | (5) |
| H2(0-0)S(8) (a) | 5.053 | 2.33±0.08 | 2.1±0.7 | 4.2±0.07 |
| [FeII] (b) | 5.340 | 10.4±0.3 | 11±2 | 20.9±0.6 |
| [FeVIII] (b) | 5.447 | 7.9±0.4 | 11±1 | |
| [MgVII] (b) | 5.503 | 12.4±0.3 | 13±2 | |
| H2(0-0)S(7) (a) | 5.511 | 7.7±0.6 | 7.0±0.4 | 12±2 |
| [MgV] (b) | 5.610 | 16.2±0.4 | 20.1±0.6 | |
| [KIV] (a) | 5.982 | 1.0±0.2 | 1.0±0.1 | |
| H2(0-0)S(6) (a) | 6.109 | 4.0±0.2 | 1.6±0.4 | 6.5±0.2 |
| [SiVII] (a) | 6.492 | 0.9±0.2 | 0.7±0.2 | |
| [NiII] (a) | 6.636 | 1.4±0.3 | ||
| H2(0-0)S(5) (a) | 6.910 | 16.6±0.5 | 6.6±0.2 | 29.4±0.4 |
| [ArII] (b) | 6.985 | 43.0±0.9 | 5.7±0.3 | 59±1 |
| [NaIII] (a) | 7.318 | 3.1±0.2 | 3.7±0.3 | |
| Pfund-α(a) | 7.460 | 2.7±0.2 | 3.9±0.1 | |
| [NeVI] (b) | 7.652 | 70±2 | 0.6±0.07 | 77±2 |
| [FeVII] (b) | 7.815 | 5.9±0.8 | 6.9±0.8 | |
| [ArV] (b) | 7.902 | 3.3±0.2 | 4.3±0.4 | |
| H2(0-0)S(4) (a) | 8.025 | 8.3±0.2 | 2.1±0.1 | 14.2±0.2 |
| [ArIII] (b) | 8.991 | 22.2±0.5 | 1.2±0.2 | 27.6±0.6 |
| [FeVII] (b) | 9.527 | 7.8±0.4 | 8.1±0.5 | |
| H2(0-0)S(3) (a) | 9.66 | 14.3±0.3 | 5.7±0.2 | 27.0±0.4 |
| [SIV] (b) | 10.51 | 52±1 | 6.1±0.4 | 65±2 |
| H2(0-0)S(2) (a) | 12.28 | 11.0±0.4 | 4.1±0.1 | 16.5±0.3 |
| [NeII] (b) | 12.81 | 143±3 | 11.3±0.3 | 160±4 |
| [NeV] (b) | 14.32 | 59±2 | 3.5±0.2 | 63±2 |
| [NeIII] (b) | 15.56 | 158±2 | 11.3±0.2 | 169±3 |
| H2(0-0)S(1) (a) | 17.03 | 22.6±0.6 | 8.6±0.2 | 31.3±0.2 |
| [SIII] (b) | 18.71 | 67±1 | 7.2±0.3 | 73±2 |
| [NeV] (b) | 24.32 | 34±3 | 3.7±0.5 | 35±2 |
| [OIV] (b) | 25.89 | 149±5 | 18±1 | 155±5 |
Notes. Columns describe the: (1) name of each detected emission line, (2) central wavelength from lab of each emission line, and (3,4,5) measured flux in the nuclear, circumnuclear, and central spectra, respectively.
Line fit with two Gaussian components. Nuclear region covers a circular area centred on the nucleus of the source and with a radius equal to 1.5 × FWHM(λ), where FWHM(λ) = 0.17 kpc for λ < 8 μm and FWHM(λ) = 0.17 × λ[μm]/8 kpc for λ > 8 μm. Circumnuclear region covers an annulus area centred on the nucleus of the source, and with an inner radius of 0.55 kpc and an outer radius of 0.88 kpc. Central region covers a circular area centred on the nucleus of the source and with a radius of 0.88 kpc. Additional uncertainties in the absolute flux of 10% for all channels should be considered.
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