\begin{table}%t2 \caption{\label{tab:1ext}Line fluxes observed towards HH~46 with PACS\tablefootmark{a}.} %\centerline $${ \begin{tabular}{lc r@{\extracolsep{0pt}}c ccccc} \hline \hline & & & & & Central Spaxel & Red Outflow & Blue Outflow & All 25 Spaxels \\ \multicolumn{5}{r}{Area (square arcsec)} & 88 & 530 & 530 & 2200 \\ Species & Transition & & $\lambda_{\rm lab}$ & $E_{\rm{u}}/k_{\rm B}$ & Flux & Flux & Flux & Flux \\ & & & ($\mu$m) & (K) & \multicolumn{4}{c}{($10^{-18}$ W m$^{-2}$)} \\ \hline CO & 14--13 & & 185.999 & \phantom{0}580.5 & $\phantom{0}48\pm4$\phantom{:} & $\phantom{0}27\pm2$\phantom{:} & $18\pm2$ & $108\pm7$\phantom{0} \\ & 16--15 & & 162.812 & \phantom{0}751.7 & $\phantom{0}46\pm5$\phantom{:} & $\phantom{0}27\pm2$\phantom{:} & $13\pm3$ & $\phantom{^{\rm b}}80\pm8$\tablefootmark{b} \\ & 18--17 & & 144.784 & \phantom{0}945.0 & $\phantom{0}71\pm7$\phantom{:} & $\phantom{0}27\pm2$\phantom{:} & \phantom{00}$<$14 & $\phantom{^{\rm b}0}67\pm30$\tablefootmark{b} \\ & 22--21 & & 118.581 & 1397.4 & $\phantom{0}33\pm7$\phantom{:} & \phantom{00:}$<$34 & \phantom{00}$<$27 & $44\pm8$ \\ & $\phantom{^{\rm c}}$23--22\tablefootmark{c} & & 113.458 & 1524.2 & $\phantom{00}78\pm11$\phantom{:} & $\phantom{0}15\pm3$\phantom{:} & \phantom{00}$<$14 & $\phantom{^{\rm b}0}78\pm13$\tablefootmark{b} \\ & 24--23 & & 108.763 & 1656.5 & $\phantom{0}18\pm6$\phantom{:} & \phantom{00:}$<$14 & \phantom{00}$<$26 & $38\pm9$ \\ & 29--28 & & \phantom{0}90.163 & 2399.8 & $\phantom{0}18\pm3$\phantom{:} & \phantom{00:}$<$26 & \phantom{00}$<$19 & $28\pm6$ \\ & 30--29 & & \phantom{0}87.190 & 2564.8 & $\phantom{0}25\pm4$: & \phantom{00:}$<$14 & \phantom{00}$<$21 & \phantom{00}$<$55 \\ & $\phantom{^{\rm d}}$31--30\tablefootmark{d} & & \phantom{0}84.411 & 2735.3 & $\phantom{0}74\pm6$\phantom{:} & \phantom{00:}$<$31 & \phantom{00}$<$22 & $\phantom{^{\rm b}}55\pm7$\tablefootmark{b} \\ & 32--31 & & \phantom{0}81.806 & 2911.2 & \phantom{00:}$<$29 & \phantom{00:}$<$40 & \phantom{00}$<$40 & \phantom{00}$<$61 \\ & 33--32 & & \phantom{0}79.360 & 3092.5 & \phantom{00:}$<$17 & \phantom{00:}$<$27 & \phantom{00}$<$41 & \phantom{00}$<$57 \\ & 36--35 & & \phantom{0}72.843 & 3668.8 & \phantom{00:}$<$23 & \phantom{00:}$<$49 & \phantom{00}$<$51 & \phantom{0}$<$136 \\ \multicolumn{9}{c}{~} \\ H$_2$O & 2$_{21}$--2$_{12}$ & & 180.488 & \phantom{0}194.1 & \phantom{000:}$<$7 & \phantom{000:}$<$9 & \phantom{000}$<$9 & \phantom{00}$<$14 \\ & 2$_{12}$--1$_{01}$ & & 179.527 & \phantom{0}114.4 & $\phantom{00}4\pm2$: & $\phantom{0}46\pm3$\phantom{:} & $16\pm2$ & $82\pm7$ \\ & 3$_{03}$--2$_{12}$ & & 174.626 & \phantom{0}196.8 & \phantom{00:}$<$22 & $\phantom{0}24\pm2$\phantom{:} & \phantom{00}$<$21 & $54\pm7$ \\ & 3$_{13}$--2$_{02}$ & & 138.528 & \phantom{0}204.7 & $\phantom{0}14\pm4$\phantom{:} & $\phantom{0}18\pm3$: & \phantom{00}$<$10 & $34\pm8$ \\ & 4$_{04}$--3$_{13}$ & & 125.354 & \phantom{0}319.5 & \phantom{00:}$<$18 & \phantom{000:}$<$6 & $14\pm3$ & \phantom{00}$<$24 \\ & $\phantom{^{\rm c}}$4$_{14}$--3$_{03}$\tablefootmark{c} & & 113.537 & \phantom{0}323.5 & $\phantom{00}78\pm11$\phantom{:} & $\phantom{0}15\pm3$\phantom{:} & \phantom{00}$<$14 & $\phantom{^{\rm b}0}78\pm13$\tablefootmark{b} \\ & 2$_{21}$--1$_{10}$ & & 108.073 & \phantom{0}194.1 & $\phantom{0}17\pm7$\phantom{:} & $\phantom{0}16\pm3$: & $21\pm4$ & $\phantom{0}64\pm11$ \\ & $3_{22}$--$2_{11}$ & & \phantom{0}89.988 & \phantom{0}296.8 & \phantom{00:}$<$27 & \phantom{00:}$<$22 & \phantom{00}$<$49 & \phantom{0}$<$110 \\ & 8$_{18}$--7$_{07}$ & & \phantom{0}63.324 & 1070.7 & \phantom{00:}$<$33 & \phantom{00:}$<$10 & \phantom{00}$<$22 & \phantom{00}$<$43 \\ \multicolumn{9}{c}{~} \\ OH\tablefootmark{e} & \multirow{2}{*}{$\frac{1}{2}$,$\frac{3}{2}$--$\frac{1}{2}$,$\frac{1}{2}$} & \multirow{2}{*}{\bigg\{} & 163.396 & \phantom{0}269.8 & \phantom{00:}$<$27 & \phantom{000:}$<$4 & \phantom{000}$<$9 & \phantom{00}$<$10 \\ & & & 163.015 & \phantom{0}270.2 & $\phantom{0}22\pm4$\phantom{:} & \phantom{00:}$<$18 & \phantom{000}$<$5 & $20\pm4$ \\[1mm] & \multirow{2}{*}{$\frac{3}{2}$,$\frac{5}{2}$--$\frac{3}{2}$,$\frac{3}{2}$} & \multirow{2}{*}{\bigg\{} & 119.441 & \phantom{0}120.5 & $\phantom{0}44\pm7$\phantom{:} & $\phantom{0}49\pm5$\phantom{:} & \phantom{000}$<$7 & $\phantom{^{\rm b}0}86\pm12$\tablefootmark{b} \\ & & & 119.234 & \phantom{0}120.7 & $\phantom{0}38\pm9$\phantom{:} & $\phantom{0}25\pm4$\phantom{:} & \phantom{00}$<$19 & $\phantom{0}71\pm15$ \\[1mm] & \multirow{2}{*}{$\phantom{^{\rm d}}$$\frac{3}{2}$,$\frac{7}{2}$--$\frac{3}{2}$,$\frac{5}{2}$\tablefootmark{d}} & \multirow{2}{*}{\bigg\{} & \phantom{0}84.597 & \phantom{0}290.5 & $\phantom{0}87\pm6$\phantom{:} & \phantom{00:}$<$14 & \phantom{00}$<$27 & $\phantom{0}95\pm10$ \\ & & & \phantom{0}84.420 & \phantom{0}291.2 & $\phantom{0}74\pm6$\phantom{:} & \phantom{00:}$<$31 & \phantom{00}$<$22 & $\phantom{^{\rm b}}55\pm7$\tablefootmark{b} \\ [1mm] & \multirow{2}{*}{$\frac{1}{2}$,$\frac{1}{2}$--$\frac{3}{2}$,$\frac{3}{2}$} & \multirow{2}{*}{\bigg\{} & \phantom{0}79.179 & \phantom{0}181.7 & $\phantom{0}38\pm5$\phantom{:} & \phantom{00:}$<$41 & \phantom{00}$<$37 & $\phantom{0}93\pm13$ \\ & & & \phantom{0}79.116 & \phantom{0}181.9 & $\phantom{0}55\pm7$\phantom{:} & \phantom{00:}$<$34 & \phantom{00}$<$35 & $\phantom{0}87\pm10$ \\ \multicolumn{9}{c}{~} \\ \ion{O}{i} & $^3$P$_{0}$--$^3$P$_{2}$ & & 145.525 & \phantom{0}326.6 & $\phantom{0}82\pm8$\phantom{:} & $\phantom{0}68\pm4$\phantom{:} & $48\pm3$ & $208\pm14$ \\ & $^3$P$_1$--$^3$P$_2$ & & \phantom{0}63.184 & \phantom{0}227.7 & $1260\pm54$\phantom{:} & $\phantom{0}186\pm28$\phantom{:} & $420\pm20$ & $1870\pm80$\phantom{0} \\ & & & \multicolumn{2}{c}{$\varv=-170$ km~s$^{-1}$\tablefootmark{f}} & $\phantom{0}162\pm12$\phantom{:} & \phantom{0:}-- & $90\pm8$ & $282\pm51$ \\ & & & \multicolumn{2}{c}{$\varv=+110$ km~s$^{-1}$\tablefootmark{f}} & \phantom{0:}-- & $1230\pm52$\phantom{:} & \phantom{0}-- & $1510\pm100$ \\ \multicolumn{9}{c}{~} \\ \ion{C}{ii} & $^2$P$_{3/2}$--$^2$P$_{1/2}$ & & 157.741 & \phantom{00}91.2 & $\phantom{0}73\pm6$\phantom{:} & $\phantom{0}77\pm4$\phantom{:} & $140\pm6$\phantom{0} & $505\pm23$ \\ \hline \end{tabular}}$$ \tablefoot{\tablefoottext{a}{Fluxes are measured from Gaussian fits. Lines marked with a colon are only weakly detected. Listed uncertainties are 68\% confidence intervals, upper limits are 95\% confidence intervals. The uncertainties do not include the 50\% error margin in the relative spectral response function.} \tablefoottext{b}{The total flux is less than the combined flux from the central spaxel, the red outflow and the blue outflow. This is a result of higher noise in the spectrum summed over all spaxels, leading to a different fit and PSF over-correction.} \tablefoottext{c}{The CO 23--22 and H$_2$O 4$_{14}$--3$_{03}$ lines at 113.5~$\mu$m are blended.} \tablefoottext{d}{The CO 31--30 and OH $3/2$,$7/2$--$3/2$,$5/2$ lines at 84.4~$\mu$m are blended.} \tablefoottext{e}{Doublet transitions.} \tablefoottext{f}{Blue- and red-shifted components of the [\ion{O}{i}] 63.2~$\mu$m line. The blue component is not detected in the spaxels covering the red outflow, and vice versa. Futhermore, the red component is not detected in the central spaxel.}} \end{table}