Table 1.
IRAM PdBI observations of Mrk 231.
| Line(s) | νrest | νobs | Date | Conf. | Clean beam | rms (100 km s−1) | Ref. | Proj. ID |
|---|---|---|---|---|---|---|---|---|
| [GHz] | [GHz] | [″ × ″] | [mJy beam−1] | |||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) |
| CN(1–0) | 113.4910 ( † ) | 108.8987 ( † ) | 2010 | 6C | 2.8 × 2.6 | 0.47 | This work | UA26 |
| CO(1–0) | 115.2712 | 110.6069 | 2009–2010 | 6C/5D | 3.2 × 2.8 | 0.25 | Cicone et al. (2012) | UA26,T02F |
| CO(2–1) | 230.5380 | 221.2096 | 2010 | 6C/5D | 1.3 × 1.0 | 0.79 | Cicone et al. (2012) | UB26 |
| CO(3–2) | 345.7960 | 331.8038 | 2012 | 6D | 1.5 × 1.3 | 2.1 | Feruglio et al. (2015) | V087 |
| HCN(1–0) ( ‡ ) | 88.6319 | 85.0455 | 2011 | 6B | 1.4 × 1.2 | 0.37 | Aalto et al. (2012) | U–D |
| HCN(2–1) | 177.2610 | 170.0884 | 2012 | 5D | 2.9 × 2.0 | 0.60 | Lindberg et al. (2016) | W028 |
| HCN(3–2) | 265.8862 | 255.1275 | 2012–2013 | 6A/6B | 0.4 × 0.3 | 0.54 | Aalto et al. (2015) | V086,WA85 |
Notes. (1) Molecular transition; (2) rest frequency; (3) observed (sky) frequency; (4) observing dates; (5) configuration of the interferometer; (6) synthesised beam size achieved after cleaning with natural weighting by using a support encompassing the 3σ contour levels; (7) 1σ rms per beam calculated in channels of Δv = 100 km s−1; (8) relevant references; (9) identification code of the observing programme. ( † )Central frequency of the J = 3/2−1/2 spingroup (i.e. the brightest component of the CN(1–0) doublet); ( ‡ )these observations also include the HCO+(1–0), HNC(1–0), and HC3N(10–9) transitions (see Fig. 2).
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