Table 9
Masses, energetics, and luminosities in the expanding shells of M 42 (Veil shell), M 43, and NGC 1977.
| M 42 (Veil shell) | M 43 | NGC 1977 | References | |
|---|---|---|---|---|
 |
70 | 1.5 | 1 | 1, 2, 8 |
| Lw [L⊙] | 400 | ~1.5 × 10−2 | ~1.5 × 10−2 | 3, 4 |
| Mass of neutral gas [M⊙] | 1500 | 7 | 700 | 5, 8 |
| Mass of ionized gas [M⊙] | 24 | 0.3 | 16 | 6, 8 |
| Ekin of neutral gas [1046 erg] | 250 | 0.3 | 2 | 5, 8 |
| Ekin of ionized gas [1046 erg] | 6 | – | – | 6, 7 |
| Eth of ionized gas [1046 erg] | 3 | 0.7 | 5 | 5, 8 |
| Eth of hot gas [1046 erg] | 10 | – | – | 3 |
| LFIR [L⊙] | 3.2 × 104 | 8.5 × 103 | 1.5 × 104 | 8 |
| L[C II] [L⊙] | 170 | 24 | 140 | 8 |
References. (1) O’Dell et al. (2017), (2) Simón-Díaz et al. (2011), (3) Güdel et al. (2008), (4) Oskinova et al. (2011), (5) Pabst et al. (2019), (6) Wilson et al. (1997), (7) O’Dell (2001), (8) this work.
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