Table 3
Dense structures and their physical parameters in W49A.
| Name | lcen (a) (°) | bcen (a) (°) | Req (b) (pc) | M (c) (M⊙) | Tdust (d) (K) | ∑ (e) (g cm−2) | n(H2) (f) (×103 cm−3) |
|---|---|---|---|---|---|---|---|
| W49A-N | 43.17 | −0.01 | 5.46 ± 0.35 | 98 844 ± 12848 | 33.86 | 0.22 ± 0.04 | 2.10 ± 0.27 |
| W49A-S | 43.16 | −0.03 | 3.66 ± 0.24 | 26 240 ± 3411 | 31.91 | 0.13 ± 0.02 | 1.85 ± 0.24 |
| W49A-SW | 43.15 | 0.01 | 2.85 ± 0.19 | 13 553 ± 1762 | 31.84 | 0.11 ± 0.02 | 2.03 ± 0.26 |
| Sub_hub1 | 43.23 | −0.05 | 3.25 ± 0.21 | 12745 ± 1657 | 25.39 | 0.08 ± 0.01 | 1.28 ± 0.17 |
| Sub_hub2 | 43.12 | 0.03 | 4.07 ± 0.26 | 14 858 ± 1931 | 24.89 | 0.06 ± 0.01 | 0.76 ± 0.09 |
| Clump5 | 43.25 | −0.09 | 1.63 ± 0.11 | 2090 ± 272 | 20.74 | 0.05 ± 0.01 | 1.67 ± 0.22 |
| Clump6 | 43.08 | −0.08 | 1.63 ± 0.11 | 1913 ± 249 | 21.69 | 0.05 ± 0.01 | 1.53 ± 0.20 |
| Clump7 | 43.09 | −0.05 | 1.22 ± 0.08 | 610 ± 79 | 25.92 | 0.03 ± 0.01 | 1.16 ± 0.15 |
| Clump8 | 43.11 | 0.04 | 3.04 ± 0.20 | 8385 ± 1089 | 21.73 | 0.06 ± 0.01 | 1.03 ± 0.13 |
| Clump9 | 43.08 | 0.00 | 1.82 ± 0.12 | 1823 ± 237 | 26.48 | 0.04 ± 0.01 | 1.05 ± 0.14 |
| Clump10 | 43.06 | 0.00 | 1.63 ± 0.11 | 1455 ± 189 | 23.51 | 0.04 ± 0.01 | 1.17 ± 0.15 |
| Clump11 | 43.14 | −0.06 | 1.63 ± 0.11 | 2173 ± 282 | 24.62 | 0.05 ± 0.01 | 1.74 ± 0.23 |
| Clump12 | 43.19 | 0.07 | 1.63 ± 0.11 | 1119 ± 145 | 23.39 | 0.03 ± 0.01 | 0.89 ± 0.12 |
| Clump13 | 43.16 | 0.01 | 5.08 ± 0.33 | 83714 ± 10881 | 33.57 | 0.22 ± 0.04 | 2.20 ± 0.29 |
| Clump14 | 43.18 | −0.01 | 2.64 ± 0.17 | 21777 ± 2831 | 33.84 | 0.21 ± 0.04 | 4.10 ± 0.53 |
| Clump15 | 43.18 | −0.04 | 2.03 ± 0.13 | 4389 ± 571 | 31.01 | 0.07 ± 0.01 | 1.80 ± 0.23 |
Notes. (a)Coordinates the dense structure's central point (Galactic longitude, latitude). (b)The equivalent radius of the dense structure, Req = (Aclump/π)0.5 (Rigby et al. 2019). (c)The mass of dense structures is calculated from the hydrogen molecular column density. (d)The average dust temperature of dense structures. (e)The surface density of the dense structures calculated by ![$\[\Sigma=M /\left(\pi R_{\mathrm{eq}}^2\right)\]$](/articles/aa/full_html/2024/08/aa48580-23/aa48580-23-eq11.png){kind=small}
(Mazumdar et al. 2021). (f)The hydrogen molecular number density of the dense structure, calculated as ![$\[\bar{n}\left(\mathrm{H}_2\right)=3 M /\left(4 \pi \mu m_{\mathrm{p}} R_{\mathrm{eq}}{ }^3\right)\]$](/articles/aa/full_html/2024/08/aa48580-23/aa48580-23-eq12.png){kind=small}
(Rigby et al. 2019).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.