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Table 1:

Summary of the parameters of the spectral line observations.

Line
$\nu$ $\Theta_{\rm beam}$ $T_{\rm sys}$ $\Delta~v$ $\eta_{\rm mb}$
  (GHz) (arcsec) (K) (km s-1)  
(1) (2) (3) (4) (5) (6)
FCRAO 14 m
13CO(1-0) 110.201 46 294-680 0.2 0.49
C18O(1-0) 109.782 46 291-697 0.2 0.49
C17O(1-0) 112.359 46 290-371 0.2 0.47
IRAM 30 m
13CO(2-1) 220.399 11 639-1129 0.1 0.52
C18O(2-1) 219.569 11 659-1061 0.1 0.52
C17O(2-1) 224.714 11 383-517 0.1 0.536

Notes. Column (1): the observed line; Col. (2): the frequency of the transition; Col. (3): the beam size of the observations; Col. (4): the typical system temperature, $T_{\rm sys}$, of the observations; Col. (5): the velocity resolution, $\Delta~v$, of the observations; Col. (6): the beam efficiency used for every specific frequency.


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