Table A.5
Electron density values of PNe (cm−3).
| PN | ne (this work) | ne (Lit.) | Sources |
|---|---|---|---|
| J320 | 3350 ± 600 | 4800 | 1, 2, 3, 4 |
| K3-65 | 1150 ± 200 | ... | ... |
| K3-66 | 3150 ± 500 | 7700 | 1, 5 |
| K3-67 | 3900 ± 550 | 4400 | 5, 6, 7, 8 |
| K3-68 | 600 ± 300 | 500 | 6 |
| K3-69 | 3700 ± 3000‡ | ... | ... |
| K3-70 | 2000 ± 650 | 2250 | 2, 5, 9 |
| K3-71 | 10 000 ± 2000† | 10 000 | 8 |
| K3-90 | 400 ± 300 | 20 000* | 5 |
| K4-48 | 8100 ± 2250 | 2600 | 5, 10 |
| M1-1 | 1300 ± 450 | 4100 | 1, 11 |
| M1-6 | 11 450 ± 4700 | 8500 | 2, 5 |
| M1-7 | 1900 ± 200 | 1050 | 2, 5 |
| M1-8 | 350 ± 150 | 440 | 2 |
| M1-9 | 5050 ± 900 | 4600 | 2, 5, 10 |
| M1-14 | 5450 ± 450 | 5400 | 2, 5, 12 |
| M1-16 | 2800 ± 550 | 2300 | 2, 5, 10, 13 |
| M1-17 | 6450 ± 300 | 5000 | 2, 9, 14, 15 |
| M2-2 | 1550 ± 300 | 1600 | 5 |
| M3-2 | 230† | 230 | 2 |
| M4-18 | 8000 ± 3000† | 8000 | 16, 17 |
| SaSt2-3 | 600 ± 450 | 2400 | 9 |
| Y-C 2-5 | 3700 ± 3000‡ | ... | 2, 5, 10 |
Notes. [S III] densities used when applicable. Literature values are averaged when there are multiple sources. No uncertainty was given for the literature value of M3-2. * High density limit. † Value from literature. ‡ Mean ne value from those derived from [S III] in our sample, with the standard deviation of all other data points as the associated uncertainty.
References. (1) Aller & Czyzak (1983); (2) Costa et al. (2004); (3) Koeppen et al. (1991); (4) Milingo et al. (2002); (5) Henry et al. (2010); (6) Aller & Keyes (1987); (7) Kingsburgh & Barlow (1994); (8) Tamura & Shaw (1987); (9) Aksaker et al. (2015); (10) Cuisinier et al. (1996); (11) Aller et al. (1986); (12) Costa et al. (1996); (13) Perinotto & Corradi (1998); (14) de Freitas Pacheco et al. (1991); (15) Peimbert et al. (1995); (16) De Marco & Crowther (1999); (17) Goodrich & Dahari (1985).
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