Table 1
Summary of the physical parameters defining the chains of clusters in Sco-Cen.
| Cluster chain | Nstars | Average acceleration | Mres. cloud | Reference | RVCO | Pres. cloud | NSN (2σ) |
|---|---|---|---|---|---|---|---|
| (km s−1 Myr−1) | (M⊙) | (km s−1) | (M⊙ km s−1) | ||||
| CrA | 579 (3491) | 0.6 ± 0.1 | 9000 | (1) | 5.7 ± 1.4 | 25 000 | 2.4 (0.4, 9.1) |
| LCC | 558 (2363) | 0.8 ± 0.2 | 50–300 | (2) | 4.4 ± 0.9 | – | – |
| Upper-Sco | 3320 (5203) | 0.4 ± 0.1 | 11 000 | Appendix C.1 | 4.1 ± 1.2 | 70 000 | 3.2 (0.1, 9.1) |
| Upper-Sco I | 1115 (2998) | 0.7 ± 0.2 | |||||
| Upper-Sco II | 1670 | 0.5 ± 0.1 | 3.3 ± 0.5 | ||||
Notes. In Column 2, we list the number of stars formed along each cluster chain excluding the clusters older than 15 Myr, with values in parenthesis indicating the count when all clusters are included. The average acceleration and its uncertainty in column 3 are computed as the median and median absolute deviation, respectively, of the posterior probability distribution from the linear regression. The residual gas mass at the end of each cluster chain is given in Column 4, with their corresponding references in Column 5. In Column 6, we list the radial velocity measured for the CO gas (Dame et al. 2001) within the residual gas structures of the cluster chains (see Appendix B for details). Columns 7 and 8 lists the current cloud momentum (see Sect. 3.5 for details) and the median and 2σ-interval of the number of SNe needed to account for this momentum, respectively. In the case of the LCC chain, we refrain from a momentum estimation, see Sect. 3.5. (1) Alves et al. (2014); Posch et al. (2023), (2) Boulanger et al. (1998).
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.