Table 1
Parameters of the targeted sources.
| ID | Cloud | Distance | RA | Dec | Tdust |  |
Angular size | Physical size | Mass | αvir |
|---|---|---|---|---|---|---|---|---|---|---|
| (pc) | (2000) | (2000) | (K) | (cm−2) | (arcsec) | (pc) | M⊙ | |||
| 869 | MBM12 | 252 ± 12 | 02:56:39.35 | 19:25:07.6 | 12.0 | 1.57 × 1022 | 71.2 | 0.086 | 2.9 | 1.4 ± 0.2 |
| 1390 | λ Ori | 402 ± 20 | 05:52:15.88 | 08:23:00.3 | 8.8 | 3.2 × 1022 | 51.8 | 0.102 | 5.9 | 1.0 ± 0.1 |
| 4149 | California | 470 ± 24 | 04:26:59.47 | 36:55:52.9 | 7.5 | 1.02 × 1022 | 46.0 | 0.104 | 2.4 | 0.7 ± 0.1 |
Notes. The sources are based on the Galactic cold core catalogue (Montillaud et al. 2015). The temperature and the H2 column density in the table are averaged over the whole core. The angular size and physical size here have an equivalent diameter:
, where a and b are the semi-major axis and semi-minor axis. The core mass is estimated using Herschel data. The adopted distances are from Zucker et al. (2019) based on Gaia observations.
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