Table 3.
Observed sources.
| Source | α (J2000) | δ (J2000) | Type | SpT | d (kpc) | L (103 L⊙) | vsys (km s−1) | Ṁ (M⊙ yr−1) | Morph. | Refs. |
|---|---|---|---|---|---|---|---|---|---|---|
| pPNe | ||||||||||
| IRAS 07134+1005 | 07 16 10.258 | +09 59 47.99 | C | F5Iab | 3 | 13.5 | 72 | 5 × 10−5 | b | 1, 2 |
| IRAS 19500–1709 | 19 52 52.701 | −17 01 50.30 | C | F2-6 | 1 | 1.5 | 25 | – | – | 1 |
| IRAS 21282+5050 | 21 29 58.420 | +51 03 59.80 | C | 09.5, WC11 | 3 | 5.3 | 14 | 6 × 10−5 | – | 1, 2 |
| IRAS 22272+5435 | 22 29 10.374 | +54 51 06.35 | C | G5Ia | 1.7 | 8.3 | −28 | 2 × 10−5 | s | 1 |
| M 1–92 | 19 36 18.910 | +29 32 50.00 | O | B0.5IV | 2.5 | 10 | −1 | 2.2 × 10−4 | b | 1, 3 |
| M 2–56 | 23 56 36.400 | +70 48 18.20 | – | Be | 3 | 10 | −27 | 2.3 × 10−5 | b | 1 |
| OH 17.7–2.0 | 08 30 31.000 | −14 28 57.00 | O | F0 | 2 | 2.9 | 61 | 1 × 10−4 | b | 1, 4 |
| R Sct ( † ) | 18 47 28.950 | −05 42 18.53 | O | G0-K2 | 0.4 | 4 | 56 | 3.3 × 10−7 | – | 1 |
| 89 Her ( † ) | 17 55 25.189 | +26 02 59.97 | O | F2Ibe | 0.6 | 3.3 | −8 | 4 × 10−6 | b | 1, 5 |
| Compact PNe | ||||||||||
| NGC 6537 | 18 05 13.104 | −19 50 34.88 | O ( * ) | – | 1.6 | 2 | 8.6 | 1 × 10−7 | b | 6, 7, 8 |
| M 1–16 | 07 37 18.955 | −09 38 49.67 | O | – | 1.8 | 0.12 | 50 | 2 × 10−5 | e | 2 |
| M 1–17 | 07 40 22.206 | −11 32 29.81 | – | – | 5.8 | – | 28 | – | c | 9, 10 |
| M 3–28 | 18 32 41.288 | −10 05 50.03 | C | – | 2.5 | – | 32 | – | q | 6, 11 |
| Extended PNe | ||||||||||
| NGC 2346 | 07 09 22.521 | −00 48 23.60 | – | A5V | 0.9 | – | 2 | – | b | 6 |
| NGC 6072 | 16 12 58.079 | −36 13 46.06 | – | B | 1.39 | 0.39 | 15 | – | b | 6 |
| NGC 6720 | 18 53 35.079 | +33 01 45.03 | O | hgO(H) | 0.7 | 1 | −4 | 2 × 10−4 | b | 6, 2 |
| NGC 6781 | 19 18 28.085 | +06 32 19.29 | C | DAO | 0.95 | 0.35 | 17 | – | e | 6 |
| NGC 7293 | 22 29 38.550 | −20 50 13.60 | C | DAO.5 | 0.22 | 0.09 | −24 | 1 × 10−4 | b | 6, 2 |
Notes. ( † )Bipolar nebula with rotational disk. ( * )Edwards & Ziurys (2013) questioned how O-rich NGC 6537 is. Morph. abbreviations: b: bipolar or hourglass-like, c:compact, e: elliptical, q: quadrupolar, s: spherical.
References. (1): Bujarrabal et al. (2001); (2): Fong et al. (2006); (3): Bujarrabal et al. (1998); (4): Bujarrabal et al. (1994); (5): Alcolea & Bujarrabal (1995); (6): Frew (2008); (7): Cuesta et al. (1995); (8): Edwards & Ziurys (2013); (9): Maciel (1984); (10): Bachiller et al. (1991); (11): Ziurys et al. (2020).
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