Table 2
Summary of first core properties at time t = 1.012 tff and ρc = 2.7 × 10-11 g cm-3.
| Reference | Rfc | Mfc | Ṁ | Lacc | Tc | Tfc | Sc | αacc |
| (AU) | (M⊙) | (M⊙/yr) | (L⊙) | (K) | (K) | (erg K-1 g-1) | ||
|
|
||||||||
| This work | 8 | 2.1 × 10-2 | 3.7 × 10-5 | 0.014 | 396 | 81 | 2.11 × 109 | 24 |
| Masunaga et al. (1998) | ~ 8 | ~ 10-2 | ~ 10-5 | 0.002 | ~ 200 | 60 | 2.08 × 109 | 6 |
| Commerçon et al. (2011) | 7 | 2.31 × 10-2 | 3 × 10-5 | 0.015 | 419 | 70 | 2.02 × 109 | 19 |
| Larson (1969) | ~ 4 | ~ 1 × 10-2 | – | – | 170 | – | − | – |
Notes. Rfc, Mfc and Tfc give the radius and mass of the first core, and the temperature at the first core border respectively. The mass accretion rate Ṁ and accretion luminosity Lacc = GMfcṀ/Rfc are also computed at the first core border. Tc and Sc give the central temperature and entropy. αacc is a typical accretion parameter. The comparative values are roughly estimated at ρc ~ × 10-11 g cm-3 in Masunaga et al. (1998), at ρc = 10-10 g cm-3 in Commerçon et al. (2011) and at ρc = 2 × 10-10 g cm-3 in Larson (1969).
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