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Table 5

Relation between the hydrogen column density and the visual extinction for the dust populations listed in Table 2.

Dust populations Linear fits for the NH − AV relation

DHGL NH ~ 1.97 × 1021AV
Accreted grains NH ~ 1.80 × 1021AV
Aggregates 0% NH ~ 2.13 × 1021AV
Aggregates 10% NH ~ 2.05 × 1021AV
Aggregates 25% NH ~ 1.90 × 1021AV
Aggregates 40% NH ~ 1.76 × 1021AV

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