Table 2.
Measurements of key spectral features detected in the nuclear spectra of the QSO2s.
| QSO2 | S9.7 | S18 | S23 | [NeIII]15.6/[NeII]12.8 | [NeV]14.3/[NeII]12.8 | H2S(5)/S(1) | |
|---|---|---|---|---|---|---|---|
| Obs. | No PAH | Obs. | Obs. | ||||
| J1010 | 0.49±0.01 | 0.49 | 0.22±0.02 | 0.10±0.02 | 1.02±0.09 | 0.11±0.15 | 0.40±0.19 |
| J1100 | 0.11±0.01 | 0.11 | 0.11±0.02 | 0.07±0.04 | 3.48±0.06 | 2.07±0.06 | 1.10±0.42 |
| J1356 | –1.04±0.02 | –0.95 | 0.06±0.03 | … | 3.22±0.07 | 1.22±0.08 | 1.25±0.06 |
| J1430 | –0.29±0.09 | –0.26 | 0.18±0.06 | 0.07±0.02 | 1.79±0.06 | 0.55±0.07 | 0.43±0.06 |
| J1509 | –0.19±0.10 | –0.05 | 0.06±0.04 | … | 1.67±0.03 | 0.99±0.04 | 0.97±0.06 |
Notes. Columns 2, 3, 4, and 5 list the 9.7 μm silicate feature strength measured from the spectra before and after subtracting the PAH component, and of the 18 and 23 μm silicate features. Errors of the PAH-subtracted S9.7 are the same as those of the observed S9.7, but do not include the uncertainty associated with PAH subtraction. Columns from 6 to 8 correspond to emission line ratios aimed to characterize the strength and hardness of the ionizing continuum, of the coronal line emission relative to low-IP lines, and molecular gas excitation.
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