Table A.1
Spectral measurements for detected lines.
| Transition | Rest frequency (MHz) |  |
Peak TMB | rms (mK) | Vsys (km s−1) | Vexp (km s−1) | FWHM (km s−1) | Obs. Epoch (yr) |
|---|---|---|---|---|---|---|---|---|
| T Dra (C-rich with X-rays) | ||||||||
| SiO (J=2-1) | 86846.99 | 0.10±0.03 | 6 | 2 | −13±1 | 7±4 | 16±2 | 2020+2024 |
| HCN (J=1-0) | 88631.60 | 0.80±0.04 | 42 | 2 | −11.5±0.1 | 13±3 | 16.8±0.3 | 2020+2024 |
| HCN (J=1-0) v2=2 (a) | 89090.10 | <0.02 | <8 | 3 | — | — | — | 2020 |
| HCN (J=1-0) v2=2 (b) | 89090.10 | 0.46±0.02 | 58 | 2 | −8.1±0.1 | 0.7±0.2 | 1.1±0.1 | 2024 |
| HCO+ (J=1-0)(a) | 89188.53 | 0.12±0.05 | 4 | 3 | −17±3 | 10±3 | 16±6 | 2020 |
| HCO+ (J=1-0)(b) | 89188.53 | 0.13±0.04 | 7 | 2 | −17±1 | 9±4 | 15±3 | 2024 |
| HNC (J=1-0) | 90663.56 | 0.10±0.02 | 6 | 2 | −11.7±0.8 | 6±3 | 15±2 | 2020+2024 |
| HC3N (J=10-9) | 90978.99 | 0.08±0.02 | 6 | 2 | −13.3±0.7 | 10±5 | 14±2 | 2020+2024 |
| N2H+(J=1-0) | 93173.40 | <0.05 | <9 | 3 | — | — | — | 2020+2024 |
| SiO (J=6-5) | 260518.02 | 1.51±0.05 | 102 | 5 | −12.9±0.1 | 11±2 | 11.5±0.3 | 2020 |
| SiC2 (114,8>-104,7) | 261150.70 | 0.19±0.07 | 5 | 6 | −13±2 | 7±4 | 11±3 | 2020 |
| SiC2 (114,7−104,6) | 261509.32 | 0.17±0.07 | 9 | 6 | −12±2 | 11±4 | 16±4 | 2020 |
| (SiC2 (120,12−110,11)+C2H)(*) | 261990.74 | 0.56±0.15 | 19 | 6 | — | — | — | 2020 |
| HC3N (J=29-28) | 263792.30 | 0.44±0.10 | 21 | 6 | −11.3±0.7 | 10±2 | 18±2 | 2020 |
| HCN (J=3-2) v2=1e(a) | 265852.71 | 0.50±0.02 | 225 | 6 | −12.8±0.2 | 1.5±0.9 | 3.0±3 | 2020 |
| HCN (J=3-2) v2=1e(b) | 265852.71 | 1.66±0.02 | 519 | 9 | −13.7±0.1 | 2±1 | 3.0±0.2 | 2024 |
| HCN (J=3-2) | 265886.43 | 4.88±0.05 | 346 | 3 | −11.8±0.4 | 10±4 | 13±1 | 2020+2024 |
| HCN (J=3-2) v2=1f(a) | 267199.28 | 0.16±0.07 | 23 | 7 | −14.6±0.6 | 4±1 | 7±1 | 2020 |
| HCN (J=3-2) v2=1f(b) | 267199.28 | 0.17 ±0.07 | 16 | 7 | −14.2±0.7 | 6±2 | 11±1 | 2024 |
| HCO+ (J=3-2)(a) | 267557.63 | 0.26±0.07 | 12 | 5 | −15±1 | 9±5 | 16±3 | 2020 |
| HCO+ (J=3-2)(b) | 267557.63 | 0.61±0.07 | 37 | 6 | −15±1 | 9±5 | 13.3±0.9 | 2024 |
| HNC (J=3-2) | 271981.11 | 0.72±0.07 | 49 | 6 | −13.8±0.3 | 11±3 | 12.0±0.6 | 2024 |
| SiS (J=15-14) | 272243.06 | 0.18±0.05 | 12 | 4 | −14±1 | 6±3 | 14±2 | 2024 |
| EY Hya (O-rich with X-rays) | ||||||||
| SiO(J=2-1) | 86846.99 | 0.09±0.03 | 7 | 3 | 24±1 | 5±3 | 9±3 | 2020 |
| SiO (J=6-5) | 260518.02 | 0.42±0.10 | 24 | 8 | 25.8±0.9 | 6±3 | 13±2 | 2020 |
| HCO+ (J=1-0) | 89188.53 | <0.05 | <9 | 3 | — | — | — | 2020 |
| HCO+ (J=3-2) | 267557.63 | <0.14 | <27 | 9 | — | — | — | 2020 |
| VY Uma (C-rich without X-rays) | ||||||||
| HCN (J=1-0) | 88631.60 | <0.02 | <8 | 3 | — | — | — | 2020 |
| HCN (J=3-2) | 265886.43 | 0.43±0.05 | 22 | 6 | −4±3 | 5±2 | 9±1 | 2020 |
| HCO+ (J=1-0) | 89188.53 | <0.05 | <9 | 3 | — | — | — | 2020 |
| HCO+ (J=3-2) | 267557.63 | <0.09 | <18 | 6 | — | — | — | 2020 |
| V Eri (O-rich without X-rays) | ||||||||
| SiO(J=2-1) | 86846.99 | 0.12±0.03 | 10 | 5 | −12.8±0.7 | 4±2 | 9±2 | 2020 |
| SiO (J=6-5) | 260518.02 | 0.75±0.14 | 58 | 10 | −11.1±0.5 | 7±2 | 13±1 | 2020 |
| HCO+ (J=1-0) | 89188.53 | <0.08 | <15 | 5 | — | — | — | 2020 |
| HCO+ (J=3-2) | 267557.63 | <0.17 | <33 | 11 | — | — | — | 2020 |
Notes. Notes. Column (1): Transition, Col. (2): Line rest frequency, Col (3): Integrated main beam temperature, Col (4): Main beam temperature of the peak from the so-called Shell fit (see Sect. 4), Col (5): Main beam rms of the noise, col (6): Systemic velocity, col (7): Expansion velocity estimated from a Shell fit, col (8): line FWHM estimated from a Gaussian fit. col (9): Observing date (year); for lines labelled as 2020+2024, showing no variability, parameters are derived from the time-averaged spectra. (a) and (b) indicate the lines with multi-epoch observations that have not been averaged. (*)In this case, the SiC2 line is blended with some C2H lines (see Sect. 5.3 and Fig. 2).
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