Table 2
Hydrogen line measurements and accretion rates.
| Source | AV | Lbol | M★ | R★ | Lacc/Lbol | Flux H I 7-6 | Lacc | Ṁacc | Ṁacc |
|---|---|---|---|---|---|---|---|---|---|
| from H I 7-6 | from H I 7-6 | from Lbol | |||||||
| (mag) | (L⊙) | (M⊙) | (R⊙) | (erg cm-2 s-1) | (L⊙) | (M⊙ yr-1) | (M⊙ yr-1) | ||
| TMC1-W | 18 | 0.35 | 0.20 | 2.5 | 0.5 | 4.0 ± 1.1 × 10-15 | 1.2 × 10-2 | 4.9 × 10-9 | 7.2 × 10-8 |
| TMC1A | 33 | 2.70 | 0.56 | 2.5 | 0.5 | 6.8 ± 2.7× 10-14 | 4.5 × 100 | 6.6 × 10-7 | 2.0× 10-7 |
| SerpSMM3 | 50 | 27.5 | 0.50 | 4.0 | 1.0 | <5.4 × 10-16 | <2.0 × 10-2 | <5.2 × 10-9 | 7.2 × 10-6 |
Notes. AV is measured from the silicate feature using τ9.7 × 18.5. Lbol is divided by the number of components in multiple systems. For TMC1A and TMC1-W the measured values of stellar properties are used, for SMM3 fiducial Class 0 values are adopted. Lacc/Lbol is not a measured value but an assumption that goes into estimating Ṁacc from Lbol. All values have been corrected for extinction.
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