Open Access

Table 11

Observed column densities vs. model results.

Nobs (cm−2)(1) Nens (cm−2)(2)
CO 1 × 1018 (8−10) × 1018
HCO+ 5 × 1013 (3−5) × 1013
H13CO+ (5−2o) × 1011 (6−8) × 1011
HOC+ (3−9) × 1011 (3−6) × 1012
SO+ (2−4) × 1012 (2−3) × 1012
SO (5−10) × 1013 (8−14) × 1016
H + 2H2 2 × 1022 (4−5) × 1022

Notes.(1) Reference: (Goicoechea et al. 2016, 2017),(2) Column densities are given for the ensemble clumps from Table 10.

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