All Tables

Table 1: Source sample.
Table 2: Gaussian fits of the ortho- ${\rm H}_{2}{\rm D}^{+}$ (1_1,0-1_1,1) lines in the source sample.
Table 3: ortho- ${\rm H}_{2}{\rm D}^{+}$ column densities.
Table 4: p- ${\rm D}_{2}{\rm H}^{+}$ column density upper limits.
Table 5: The forward rate coefficient is given by $\alpha (T/300)^{\beta }$ . The reverse rate is given by $\alpha (T/300)^{\beta }{\rm e}^{-\gamma /T}$ .
Table A.1: p- ${\rm H}_{3}{\rm O}^{+}$ column density upper limits.