Table 1: Overview of the observations of the IRAS 2A outflow position treated in this paper.
Line   Rest freq. Observed with
CO 2-1 230.5380 CSO
  3-2 345.7960 CSO
C18O 3-2 329.3305 CSO
CH3OH 21-11 97.5828 OVRO
  72-61 338.7222 CSO
CS 2-1 97.9810 OSO, OVRO
  5-4 244.9356 CSO
  7-6 342.8830 CSO
C34S 2-1 96.4129 BIMA
HCN 1-0a 88.6318 OSO, BIMA
  4-3 354.5055 CSO
HCO+ 1-0 89.1885 OSO, BIMA
  4-3 356.7343 CSO
H13CO+ 1-0 86.7543 OSO, OVRO
H2CO 51,5-41,4 351.7686 CSO
  50,5-40,4 362.7359 CSO
N2H+ 1-0a 93.1737 OSO, BIMA
SiO 2-1 86.8470 OSO, OVRO
  5-4 217.1049 CSO
  8-7 347.3306 CSO
SO 22-11 86.0940 OVRO
  23-12 99.2999 OSO
  89-78 346.5285 CSO
SO2 73,5-82,6 97.7024 OVRO
aHyperfine splitting-multiple lines observed in one setting. The coordinates for the single-dish observations are $\alpha(2000)=03^{\rm h}29^{\rm m}01\hbox{$.\!\!^{\rm s}$ }0$, $\delta(2000)=31^\circ14\hbox{$^\prime$ }20\hbox{$^{\prime\prime}$ }$, i.e., corresponding to offset of (79 $^{\prime \prime }$, -17 $^{\prime \prime }$) in the maps presented in this paper.

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