Table A.2
C3O.
| Source | Trans. | ν (a) | Eup (a) | log (Aup /s−1) (a) | Telescope | HPBW | Det. | rms | Tmb | FWHM | Iint | VLSR | Refs. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NJ | (MHz) | (K) | (′′) | (mK) | (mK) | (km s−1) | (mK km s−1) | (km s−1) | |||||
| C3O | |||||||||||||
| TMC-1 | 2–1 | 19 243.5 | 1 | –6.72 | Green Bank-140 ft | 90 | Y† | 5 | 1, 2 | ||||
| 5–4 | 48 108.5 | 7 | –5.47 | Nobeyama | 39 | Y† | 23 | 2 | |||||
| 8–7 | 76 972.6 | 17 | –4.85 | Kitt Peak | 82 | Y† | 21 | 2 | |||||
| 9–8 | 86 593.7 | 21 | –4.69 | Kitt Peak | 82 | Y† | 15 | 2 | |||||
| 9–8 | 86 593.7 | 21 | –4.69 | FCRAO (b) | 60 | Y† | 7 | 2 | |||||
| L1544 | 8–7 | 76 972.6 | 20.8 | –4.84 | IRAM-ASAI | 33 | Y | 3.0 | 41.8 ± 2.9 | 0.43 ± 0.03 | 19.05 ± 2.65 | 7.14 ± 0.01 | 5 |
| 9–8 | 86 593.7 | 20.8 | –4.69 | IRAM-ASAI | 29 | Y | 2.6 | 35.2 ± 2.4 | 0.43 ± 0.03 | 16.04 ± 2.21 | 7.10 ± 0.01 | 3, 5 | |
| 10–9 | 96 214.7 | 25.4 | –4.55 | IRAM-ASAI | 26 | Y | 3.1 | 20.3 ± 3.1 | 0.34 ± 0.06 | 7.32 ± 2.41 | 7.16 ± 0.02 | 5 | |
| 11–10 | 105 835.4 | 30.5 | –4.42 | IRAM-ASAI | 24 | N | 4.3 | – | – | – | – | 5 | |
| 12–11 | 115 455.9 | 36.0 | –4.31 | IRAM-ASAI | 22 | N | 17.9 | – | – | – | – | 5 | |
| L1498 | 4–3 | 38 486.9 | 5 | –5.77 | IRA-Noto | 54 | Y | 3.8 | 12.7 ± 3.5 | 1.08 ± 0.10 | 17.03 ± 4.00 | 7.17 ± 0.50 | 5 |
| 9–8 | 86 593.7 | 21 | –4.69 | IRAM | 28 | Y | 2.6 | 14.3 ± 2.5 | 0.45 ± 0.07 | 6.87 ± 1.18 | 7.88 ± 0.03 | 5 | |
| 11–10 | 105 835.4 | 30.5 | –4.42 | IRAM | 24 | N | 4.4 | – | – | – | – | 5 | |
| Elias 18 | 4–3 | 38 486.9 | 5 | –5.77 | IRA-Noto | 54 | Y† | 7 | 4 | ||||
| 9–8 | 86 593.7 | 21 | –4.69 | IRAM | 28 | Y | 2.9 | 15.9 ± 2.5 | 0.54 ± 0.01 | 9.12 ± 1.18 | 6.02 ± 0.03 | 5 | |
| 11–10 | 105 835.4 | 30.5 | –4.42 | IRAM | 24 | N | 4.6 | – | – | – | – | 5 | |
| IRAS 16293-2422 | 9–8 | 86 593.7 | 21 | –4.69 | IRAM-TIMASSS | 28 | N | 5 | – | – | – | – | 5 |
| L1157-mm | 9–8 | 86 593.7 | 21 | –4.69 | IRAM-ASAI | 28 | N | 3 | – | – | – | – | 5 |
| L1157-B1 | 9–8 | 86 593.7 | 21 | –4.69 | IRAM-ASAI | 28 | N | 3 | – | – | – | – | 5 |
| SVS13A | 9–8 | 86 593.7 | 21 | –4.69 | IRAM-ASAI | 28 | N | 3 | – | – | – | – | 5 |
| OMC-2 FIR4 | 9–8 | 86 593.7 | 21 | –4.69 | IRAM-ASAI | 28 | N | 3 | – | – | – | – | 5 |
| IRAS 4A | 9–8 | 86 593.7 | 21 | –4.69 | IRAM-ASAI | 28 | N | 3 | – | – | – | – | 5 |
Notes. (a) C3O frequencies and spectroscopic parameters were extracted from the Cologne Database for Molecular Spectroscopy (CDMS; Müller et al. 2001, 2005). (b) FCRAO is the acronym for Five Colleges Radio Astronomy Observatory, Quabbin, Massachusetts. (†) Details of the detection are given in the reference reported in the last column. For the observations towards L1544, the rms on a 50 kHz frequency bin was computed over a range of 15 km s−1. The error in the main-beam temperature Tmb and Iint does not include the 10% calibration accuracy for the IRAM 30 m telescope. Bands with a Tmb value equal to 3σ rms are considered tentative detections, while we attribute the detected status to those bands with a Tmb ≥ 4σ rms.
References.(1) Matthews et al. (1984); (2) Brown et al. (1985); (3) Vastel et al. (2014); (4) Palumbo et al. (2008); (5) this work.
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