Table 2: Line parameters from single dish observations.
Molecule Transition $V({\rm core)}$a $I({\rm core})$b $V({\rm wing)}$a $I({\rm wing})$b
    km s-1 K km s-1 km s-1 K km s-1
12CO 2-1 [4, 11] 45 [11, 30] 13
  3-2 [4, 11] 50 [11, 30] 24
C18O 3-2 Gaussian 1.7 $\ldots$ $\ldots$
CH3OH 72-62 [6, 9] 2.0 [9, 21] 6.4
CS 2-1 [5.5, 9.5] 12 [9.5, 16] 3.9
  7-6 [5.5, 9.5] 1.6 [9.5, 16] 1.6
HCN 1-0c [5.5, 7.5] 4.2 [7.5, 15] 3.3
  4-3 [5.5, 7.5] 0.72 [7.5, 15] 0.78
HCO+ 1-0 [5.5, 7.5] 8.4 [7.5, 15] 6.5
  4-3 [5.5, 7.5] 2.7 [7.5, 15] 2.0
H2CO 51,5-41,4 [5.5, 7.5] 3.1 [7.5, 15] 1.5
SiO 2-1 $\ldots$ $\ldots$ [7, 29] 10.4
  5-4 $\ldots$ $\ldots$ [7.5, 20] 6.5
  8-7 $\ldots$ $\ldots$ [7.5, 28] 4.4
SO 23-12 [5, 9] 4.3 [9, 17] 4.2
  89-78 [5, 9] 0.61 [9, 17] 2.0
Notes: aVelocity interval over which the emission is integrated. bIntegrated line intensity ( $I=\int T_{\rm mb}~ {\rm d}v$). cMain hyperfine line; line intensities derived through decomposition with HCO+ line. See description in text.

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