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Table 2:

Observed parameters of the $J=3\to 2$ lines of H13CO+, HC18O+, H13C18O+, HN13C, H15NC and H15N13C toward L1448-mm (0, 0) and (0, -10).
  (0, 0) (0, -10)
  $V_{\rm LSR}$ $\Delta v$ $T_{\rm A}^*$ $V_{\rm LSR}$ $\Delta v$ $T_{\rm A}^*$
Line (km s-1) (km s-1) (K) (km s-1) (km s-1) (K)
H13CO+a 4.5(2) 0.9(3) 0.23(9) $\sim$4.7 ... $\la $0.168
  5.35(1) 0.71(3) 2.21(9) 5.52(4) 0.90(8) 0.65(6)
HC18O+ $\sim$4.7 ... $\la $0.195b $\sim$4.7 ... $\la $0.195
  $\sim$5.2 ... $\la $0.195 $\sim$5.2 ... $\la $0.195
H13C18O+ $\sim$4.7 ... $\la $0.090 $\sim$4.7 ... $\la $0.087
  $\sim$5.2 ... $\la $0.090 $\sim$5.2 ... $\la $0.087
HN13Ca 4.75(5) 0.6(1) 0.35(9) $\sim$4.7 ... $\la $0.261
  $\sim$5.2 ... $\la $0.237 $\sim$5.2 ... $\la $0.261
H15NC $\sim$4.7 ... $\la $0.093 ... ... ...
  $\sim$5.2 ... $\la $0.093 ... ... ...
H15N13C $\sim$4.7 ... $\la $0.198 $\sim$4.7 ... $\la $0.207
  $\sim$5.2 ... $\la $0.198 $\sim$5.2 ... $\la $0.207

Notes.  (a) These molecular line transitions were taken from JS06. (b) The upper limits of the line intensities correspond to the $3\sigma$ noise level.


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