Table 1.
Molecular hydrogen emission lines in the apertures in the circum-nuclear ring, nucleus, and inside the ring regions, and derived quantities of hot and cold molecular gas mass.
| Aperture | H2(1–0)S(3) | H2(1–0)S(2) | H2(1–0)S(1) | H2(1–0)S(0) | H2(2–1)S(1) | Hot H2 mass | Cold gas mass |
|---|---|---|---|---|---|---|---|
| λ1.958 μm | λ2.034 μm | λ2.122 μm | λ2.223 μm | λ2.248 μm | [M⊙] | [106 M⊙] | |
| N (a) | 11.81 ± 2.40 | 8.13 ± 1.50 | 12.96 ± 2.39 | 2.00 ± 1.22 | 1.03 ± 0.91 | 15 | 4−23 |
| I1 (a) | 4.97 ± 0.68 | 2.62 ± 0.44 | 5.45 ± 0.63 | 1.24 ± 0.31 | 0.63 ± 0.25 | 6 | 2−10 |
| I2 (a) | 1.96 ± 0.66 | 1.86 ± 0.38 | 2.32 ± 0.61 | 0.49 ± 0.32 | 0.27 ± 0.25 | 3 | 1−4 |
| R1 | – | – | 1.86 ± 0.29 | 0.64 ± 0.26 | – | 2 | 1−3 |
| R2 | – | – | 2.10 ± 0.30 | 0.81 ± 0.26 | 1.25 ± 0.25 | 2 | 1−4 |
| R3 | – | 1.12 ± 0.21 | 1.92 ± 0.22 | 0.96 ± 0.17 | 0.68 ± 0.15 | 2 | 1−3 |
| R4 | – | 0.95 ± 0.21 | 1.25 ± 0.23 | 0.31 ± 0.17 | 0.36 ± 0.17 | 1 | 0−2 |
| R5 | 0.88 ± 0.27 | 0.88 ± 0.22 | 1.42 ± 0.18 | 1.06 ± 0.14 | 0.49 ± 0.15 | 2 | 0−3 |
| R6 | 1.13 ± 0.27 | 0.83 ± 0.22 | 1.66 ± 0.22 | 0.61 ± 0.17 | 0.43 ± 0.18 | 2 | 1−3 |
| R7 | 1.84 ± 0.34 | 0.74 ± 0.48 | 2.74 ± 0.25 | 0.98 ± 0.19 | 0.63 ± 0.20 | 3 | 1−5 |
| R8 | 0.93 ± 0.29 | 0.61 ± 0.20 | 1.84 ± 0.18 | 0.73 ± 0.15 | 0.79 ± 0.16 | 2 | 1−3 |
| R9 | – | – | 1.15 ± 0.28 | – | – | 1 | 0−2 |
Notes. Flux units are 10−19 W m−2.
Extinction values for the apertures N, I1, and I2 are: 1.3, 0.7, and 0.7 mag. Values for the other apertures are found in Table 2.
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