Open Access
Table A.1
PNe previously surveyed in molecular lines.
| PNe | Species | Tmb (σmb) | ∫ Tmb dV (σarea) | Prev. work | Prev. work | References |
|---|---|---|---|---|---|---|
| (K) | (K km s−1) | Tmb | ∫ Tmb dV | |||
| NGC 7027 | CO (1–0) | 9.6 (0.03) | 267.0 (0.14) | 11.9 (—) | 332 (—) | a |
| CO (2–1) | 26.2 (0.05) | 520.0 (0.15) | 30.9 (—) | 667 (—) | a | |
| 13CO (1–0) | 0.28 (0.01) | 6.68 (0.06) | 0.3 (—) | 6.4 (0.3) | a, b | |
| 13CO (2–1) | 0.89 (0.01) | 22.4 (0.09) | 1.3 (—) | 17.3 (0.8) | a, b | |
| C17O (1–0) | 0.045 (0.031) | 1.51 (0.18) | — (—) | 0.92 (0.12) | c | |
| C17O (2–1) | 0.268 (0.081) | 3.33 (0.354) | 0.032 (—) | 1.87 (0.08) | d, c | |
| CO+ (2–1) | 0.05 (0.01) | 2.18 (0.11) | 0.020 (—) | 0.87 (0.13) | e | |
| N2H+ (1–0) | 0.08 (0.01) | 0.640 (0.020) | 0.017 (—) | 0.35 (—) | d | |
| HCO+ (1–0) | 1.36 (0.009) | 28.1 (0.05) | 0.247 (—) | 26.5 (0.2) | d, b | |
| CN (2–1) | 1.47 (0.016) | 86.5 (0.12) | 0.028 (—) | 41.9 (0.6) | d, b | |
| CN (1–0) | 0.543 (0.038) | 6.95 (0.048) | — (—) | 25.1 (0.4) | b | |
| HCN (1–0) | 0.35 (0.005) | 11.6 (0.03) | 0.059 (—) | 14.3 (0.4) | d, b | |
| HNC (1–0) | 0.034 (0.006) | 0.309 (0.022) | — (—) | 1.0 (1.2) | b | |
| NGC 6720 | CO (1–0) | — (—) | — (—) | 0.047 (0.005) | — (—) | f |
| CO (2–1) | — (—) | — (—) | 0.023 (0.004) | 20.0 (0.4) | f, b | |
| 13CO (1–0) | — (—) | — (—) | — (—) | 0.27 (0.11) | b | |
| 13CO (2–1) | 0.156 (0.008) | 1.30 (0.03) | — (—) | 0.9 (0.3) | b | |
| CO+ (2–1) | <0.021 (0.007) | <0.11 (0.04) | — (—) | — (—) | ||
| N2H+ (1–0) | <0.014 (0.006) | <0.012 (0.004) | — (—) | — (—) | ||
| HCO+ (1–0) | 0.103 (0.004) | 1.760 (0.019) | 0.019 (0.002) | 0.86 (0.11) | f, b | |
| CN (2–1) | 0.31 (0.01) | 10.10 (0.06) | — (—) | 4.5 (0.7) | b | |
| CN (1–0) | — (—) | — (—) | — (—) | 3.9 (0.3) | b | |
| HCN (1–0) | 0.07 (0.004) | 1.83 (0.02) | — (—) | 3.2 (0.2) | b | |
| HNC (1–0) | 0.04 (0.004) | 0.67 (0.02) | — (—) | 0.74 (0.10) | b | |
| NGC 6720 Rim | CO (1–0) | — (—) | — (—) | 0.047 (0.005) | — (—) | f |
| CO (2–1) | — (—) | — (—) | 0.023 (0.004) | 20.0 (0.4) | f, b | |
| 13CO (1–0) | — (—) | — (—) | — (—) | 0.27 (0.11) | b | |
| 13CO (2–1) | 0.05 (0.01) | 0.57 (0.06) | — (—) | 0.9 (0.3) | b | |
| CO+ (2–1) | <0.027 (0.009) | <0.18 (0.06) | — (—) | — (—) | ||
| N2 H+ (1–0) | <0.014 (0.006) | <0.017 (0.04) | — (—) | — (—) | ||
| HCO+ (1–0) | 0.063 (0.005) | 1.28 (0.03) | 0.019 (0.002) | 0.86 (0.11) | f, b | |
| CN (2–1) | 0.29 (0.01) | 11.1 (0.08) | — (—) | 4.5 (0.7) | b | |
| CN (1–0) | — (—) | — (—) | — (—) | 3.9 (0.3) | b | |
| HCN (1–0) | 0.074 (0.005) | 2.08 (0.03) | — (—) | 3.2 (0.2) | b | |
| HNC (1–0) | 0.027 (0.005) | 0.603 (0.027) | — (—) | 0.74 (0.10) | b | |
| NGC 7293 | CO (1–0) | 0.66 (0.02) | 6.0 (0.06) | 0.17 (0.030) | — (—) | g |
| CO (2–1) | 2.05 (0.06) | 12.3 (0.1) | 0.40 (0.050) | 17.5 (0.7) | g, b | |
| 13 CO (1–0) | 0.044 (0.009) | 0.096 (⋆) (0.014) | — (—) | 0.67 (0.09) | b | |
| 13 CO (2–1) | 0.047 (0.006) | 0.60 (0.03) | — (—) | 1.8 (0.2) | b | |
| CO+ (2–1) | <0.021 (0.007) | <0.07 (0.02) | — (—) | — (—) | ||
| N2 H+ (1–0) | <0.001 (0.004) | — (—) | — (—) | — (—) | ||
| HCO+ (1–0) | 0.088 (0.044) | 1.020 (0.017) | 0.04 (0.008) | 0.89 (0.10) | g, b | |
| CN (2–1) | 0.029 (0.009) | 0.18 (0.02) | — (—) | 1.0 (0.2) | b | |
| CN (1–0) | 0.054 (0.008) | 0.629 (0.04) | — (—) | 2.7 (0.2) | b | |
| HCN (1–0) | 0.041 (0.003) | 0.649 (0.014) | — (—) | 1.6 (0.2) | b | |
| HNC (1–0) | 0.038 (0.003) | 0.465 (0.013) | — (—) | 0.80 (0.11) | b | |
| NGC 6781 | CO (1–0) | 1.14 (0.02) | 15.3 (0.07) | 0.35 (—) | — (—) | h |
| CO (2–1) | 5.26 (0.05) | 49.6 (0.11) | — (—) | 28.4 (0.6) | b | |
| 13 CO (1–0) | 0.049 (0.009) | 0.159 (0.016) | — (—) | 0.32 (0.14) | b | |
| 13 CO (2–1) | 0.203 (0.007) | 2.21 (0.03) | — (—) | 1.7 (0.2) | b | |
| CO+ (2–1) | <0.021 (0.007) | <0.09 (0.03) | 0.031 (0.008) | 0.249 (—) | i | |
| N2 H+ (1–0) | <0.011 (0.003) | — (—) | — (—) | — (—) | ||
| HCO+ (1–0) | 0.167 (0.003) | 3.520 (0.018) | — (—) | 2.2 (0.2) | b | |
| CN (2–1) | 0.40 (0.01) | 13.2 (0.06) | — (—) | 4.6 (0.5) | b | |
| CN (1–0) | 0.317 (0.042) | 5.51 (0.33) | — (—) | 7.0 (0.4) | b | |
| HCN (1–0) | 0.16 (0.003) | 3.83 (0.02) | — (—) | 2.4 (0.2) | b | |
| HNC (1–0) | 0.08 (0.003) | 1.73 (0.02) | — (—) | 1.65 (0.15) | b | |
Notes. (⋆) Uncertain.
References.a: Santander-García et al. (2012); b: Bachiller et al. (1997); c: Kahane et al. (1992); d: Zhang et al. (2008); e: Hasegawa & Kwok (2001); f: Edwards et al. (2014); g: Zack & Ziurys (2013); h: Zuckerman et al. (1990); i: Bell et al. (2007).
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