Table 5
Line parameters of detected species in CIT 6 observed with the eQ receiver at the NRO 45m telescope.
| No | Molecule | Transition | Rest Freq. | Eup | Sul | gup | S μ2 | B | Tint (CIT) | Tint (IRC) | Tint ratio | Line shape |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (MHz) | (K) | (MHz) | (mK) | (mK) | CIT/IRC | |||||||
| 1 | HC7N | J = 27 → 26 | 30455.74 | 20.46 | 27.00 | 55 | 3.27 | 564.00 | 0.16 | 0.85 | 0.19 | Multiple peaks |
| 2 | HC7N | J = 28 → 27 | 31583.71 | 22.00 | 28.00 | 57 | 3.29 | 564.00 | 0.16 | 1.48 | 0.11 | Multiple peaks |
| 3 | HC5N | J = 12 → 11 | 31951.78 | 10.00 | 12.00 | 75 | 2.83 | 1331.33 | 1.06 | 7.35 | 0.14 | Double peaks |
| 29 | CCS | NJ = 34 → 23 | 45379.03 | 5.40 | 3.97 | 9 | 3.69 | 6477.75 | 0.27 | 1.71 | 0.15 | Multiple peaks |
Notes. Observations cover 30−50 GHz with a channel spacing of 120 kHz (velocity resolution: ∼ 0.7−1.2 km s−1 across the band). Integrated intensities (Tint) are derived from baseline-subtracted spectra over fixed velocity windows centred on the fitted VLSR · Eup is the upper-level energy. Sul is the intrinsic line strength; gup is the upper-level degeneracy. S μ2 is given in Debye 2. B is the rotational constant. Tint=∫ TS dv in Km s−1.
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