Table 2
Physical parameters of three extended γ-ray structures and the star forming region.
| Source | Cyg Cocoon | NGC 3603 | W43 |
|---|---|---|---|
| Extension (pc) | 50 | 130 | 60 |
| Lkin of cluster (erg s−1) | (3 ± 1) × 1038 | (2 ± 1) × 1038 | (3 ± 1) × 1037 |
| SFR (M⊙ yr−1) | 0.06 | 0.002 | 0.32 |
| Wp(>10 GeV) (erg) | (1.0 ± 0.2) × 1049 | (7.5 ± 2.5) × 1049 | (2.3 ± 0.3) × 1048 |
| Normalized Wp(>10 GeV) (erg) | (6.7 ± 1.2) × 1049 | (7.5 ± 2.5) × 1049 | (1.2 ± 0.2) × 1049 |
Notes. The wind kinematic power of Cygnus OB2 is from Ackermann et al. (2011); the discussion of the wind powers of NGC 3603 and W43 are in the text. The SFRs of W43 and the Cygnus X region can be found in Nguyen-Luong et al. (2016), and for NGC 3603 in Beccari et al. (2010). The total CR energy Wp is derived from the γ-ray emission region. The normalized Wp is derived assuming the CRs injected by Cygnus OB2 and by W43 occupy the same volume as that of NGC 3603, see the text for details.
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