Table B.1
Beam coupling corrections and C2H line intensities toward the SDLS position (Fig. 1 left).
| Species | Frequency | Telescope | HPBW |  |
|||
|---|---|---|---|---|---|---|---|
| [GHz] | /Receiver | [arcsec] | fb (single-dish) | fb (ALMA) | fb (total) | [K km s−1] | |
| C2H N = 1–0 | 87.3 | IRAM30m/E0 | 28.2 | 0.76 | 0.89 | 0.67 | 13.5 |
| C2H N = 2–1 | 174.7 | IRAM 30m/E1 | 14.1 | 0.93 | 0.89 | 0.83 | 28.4 |
| C2H N = 3–2 | 262.0 | IRAM 30m/E2 | 9.4 | 0.99 | 0.89 | 0.88 | 38.7 |
| C2H N = 4–3 | 349.3 | IRAM 30m/E3 | 8.0 | 1.00 | 0.89 | 0.89 | 37.0 |
| C2H N = 6–5 | 524.0 | Herschel/HIFI | 40.5 | 0.66 | 0.89 | 0.59 | 13.7 |
| C2H N = 7–6 | 611.3 | Herschel/HIFI | 34.7 | 0.70 | 0.89 | 0.62 | 8.7 |
| C2H N = 8–7 | 698.5 | Herschel/HIFI | 30.4 | 0.74 | 0.89 | 0.66 | 4.7 |
| C2H N = 9–8 | 785.8 | Herschel/HIFI | 27.0 | 0.77 | 0.89 | 0.68 | 3.6 |
| C2H N = 10–9 | 873.1 | Herschel/HIFI | 24.3 | 0.80 | 0.89 | 0.71 | 3.6 |
Notes. In this work we correct the observed C2H line intensities obtained with the IRAM 30 m and Herschel telescopes toward the SDLS position as Icorr = Iobs/fb (total), with fb (total) = fb (single-dish) ⋅ fb (single-dish). Iobs (IRAM) are taken from Cuadrado et al. (2015). Iobs (HIFI) are taken from Table A.1 of Nagy et al. (2017). aAdding the intensities of all individual fine-structure and hyperfine-structure C2H lines.
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