Table 1
Physical components seen in water and high-J CO emission lines profiles.
| Source type | Velocity | FWHM(a) | CO excitation | Possible origin(b) |
|---|---|---|---|---|
| Characteristics | (km s−1) | (K) | ||
| Pre-stellar | Narrow | <5 | <10 | Quiescent, infall |
| Low mass Class 0 | Broad, | 24 | 300 | Warm outflow (cavity shocks, disk wind, turbulent mixing layers) |
| Medium/offset | 18 | 700 | Hot spot shock | |
| Medium/EHV | 700 | Hot EHV bullets | ||
| Narrow | 3.5 | <100 | Quiescent, infall, expansion | |
| Low mass Class I | Broad | 15 | 300 | Warm outflow (cavity shocks, disk wind, turbulent mixing layers) |
| Narrow | 2.6 | <100 | Quiescent, infall, expansion | |
| Intermediate mass | Broad | 32 | 300 | Warm outflow (cavity shocks, disk wind, turbulent mixing layers) |
| Narrow | 4.6 | <100 | Quiescent, infall, expansion | |
| High mass | Broad | 24 | 300 | Warm outflow (cavity shocks, disk wind, turbulent mixing layers) |
| Narrow | 5.6 | <100 | Quiescent, infall, expansion | |
| Disks | Narrow | <4 | 20–300 | Rotating disk |
Notes. (a) Median width (FWHM) of water lines at the source position, taken from San José-García et al. (2016) and Table 5.4 of San José-García (2015). Values refer to the median of the WISH sample; those including other samples, such as the WILL sample, are similar within the uncertainties of a few km s−1. (b) Based on Table 1 of Kristensen et al. (2017b).
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.