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Table 2:

Parameters from the model fit.

$J(T_{{\rm f}})$
$J(T_{{\rm r}})$ $v_{{\rm f}}$ $v_{{\rm r}}$ $\tau_{0}$ $\sigma $
$[{\rm K}]$ [K] [kms-1] [kms-1] - [kms-1]
24.6 17.5 0.7 -0.3 2.0 3.4

Notes. The parameters from the best fit obtained by adjusting the Di Francesco et al. (2001) infalling model to our HCN( $J = 4 \rightarrow 3$) spectrum.

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