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Table 1

Existing line surveys of IRC +10216.

Frequencies Telescope Reference Sensitivity (1σ) FWHM beam or (″)
(GHz) (mJy) angular resolution

4–6 Arecibo-305 m Araya et al. (2003) 0.3 46–68

13.3–18.5 TMRT-65 m This work 12 52–73

17.8–26.3 Effelsberg-100 m Gong et al. (2015) 1.0 35–50

28–50 Nobeyama-45 m Kawaguchi et al. (1995) 35 35–62

72–91 Onsala-20 m Johansson et al. (1984, 1985) 665 41–52

80–116 IRAM-30 m Agúndez et al. (2014) 23 21–31

129.0–172.5 Cernicharo et al. (2000) 78 14–19

197–357.5 Agúndez et al. (2008a) 39 7–13

84.0–115.5 ALMA Agúndez et al. (2017) 1.3 1.0

131.2–160.3 ARO-12 m He et al. (2008) 1400 39–47
219.5–267.5 SMT-10 m 28–34

214.5–285.5 SMT-10 m Tenenbaum et al. (2010) 140 26–35

253–261 CARMA Fonfría et al. (2014) 20 0.25

255.3–274.8 ALMA Cernicharo et al. (2013) 5 0.6
Velilla Prieto et al. (2015) 17 0.6

293.9–354.8 SMA Patel et al. (2011) 33 3

330.2–358.1 CSO-10.4 m Groesbeck et al. (1994) 6000 20–22

222.4–267.9 JCMT-15 m Avery et al. (1992) 3100 18–22
339.6–364.6 15–16

554.5–636.5 Herschel/HIFI Cernicharo et al. (2010) 3400 33–38

Notes.

(∗)

The frequency range from 219.5 GHz to 267.5 GHz was discontinuously covered.

(⋄)

The frequency range from 222.4 GHz to 267.9 GHz was discontinuously covered.

(△)

The FWHM beam sizes are listed for single-dish, the angular resolutions are listed for interferometers.

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