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Table 2

Hydrogen line measurements and accretion rates.

Source AV Lbol M R Lacc/Lbol Flux H I 7-6 Lacc acc acc
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 acc from Lbol. All values have been corrected for extinction.

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