Table 2
Lifetimes of hypercompact and ultracompact phases for all simulations.
| # | Mcore [M⊙] | βρ | Prad | HC [kyr] | UC [kyr] |
|---|---|---|---|---|---|
| 0 | 250 | −1.5 | On | 69.7 | 101.3 |
| 1 | 250 | −2.0 | On | 17.3 | 52.8 |
| 2 | 500 | −1.5 | On | 107.4 | 164.2 |
| 3 | 500 | −2.0 | On | 16.4 | 43.9 |
| 4 | 1000 | −1.5 | On | 54.0 | 160.5 |
| 5 | 250 | −1.5 | Off | * | * |
| 6 | 500 | −1.5 | Off | 221.0 | 235.4 |
| 7 | 1000 | −1.5 | Off | 152.0 | * |
Notes. Lifetimes were measured from when the H II region reached 100 au in size. The “UC” column is thus the time spent in both the hypercompact (HC) and ultracompact (UC) phases before exiting into the compact phase. The asterisk (*) indicates that the given threshold (e.g., passing from hypercompact to ultracompact) was never reached, so the lifetime of that phase was indefinite since it did not end.
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.