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Table 1
Observed line parameters of NCCNH+ in TMC-1 and L483.
| Transition | Frequency | V LSR | Δv |  dv |
| (MHz) | (km s-1) | (km s-1) | (K km s-1) | |
|
|
||||
| TMC-1 | ||||
| J = 5−4 | 44 379.850 | +5.68(8) | 0.72(13) | 0.011(2) |
| J = 10−9 | 88 758.108 | +5.91(9) | 0.48(12) | 0.006(1) |
|
|
||||
| L483 | ||||
| J = 5−4 | 44 379.850 | +5.11(5) | 0.26(4) | 0.006(1) |
| J = 10−9 | 88 758.108 | +5.31(9) | 0.49(13) | 0.017(4) |
Notes. Numbers in parentheses are 1σ uncertainties in units of the last digits.
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