Table 2
Gaia detections of known close visual binaries.
| PN | Sep.(a) | ΔV (b) | Rel.(c) | G | Mul.(d) | RUWE |
|---|---|---|---|---|---|---|
| (′′) | (mag) | (mag) | (%) | |||
| Abell 31 | 0.26 | >6.8 | 1.00 | 15.5 | 0 | 1.03 |
| Abell 33 | 1.80 (e) | 1.0 | 0.93 | 15.9 | 0 | 1.09 |
| 0.07 | 16.7 | 0 | 0.98 | |||
| EGB 6 | 0.17 | … | 0.96 | 16.0 | 0 | 2.09 |
| K 1-14 | 0.36 | 2.4 | 1.00 | 16.1 | 70 | 2.41 |
| K 1-22 | 0.35 (e) | 0.3 | 0.83 | 16.7 | 88 | 3.47 |
| 0.17 | 16.7 | 79 | 2.94 | |||
| K 1-27 | 0.56 | 5.1 | 1.00 | 16.0 | 0 | 0.90 |
| Mz 2 | 0.28 | −1.3 | 0.98 | 16.8 | 0 | 0.97 |
| NGC 1535 | 1.04 | 5.5 | 1.00 | 12.1 | 17 | 1.01 |
| NGC 3132 | 1.70 (e) | −5.7 (f) | 0.81 | 10.0 | 0 | 1.84 |
| 0.19 | 16.1 | 16 | 2.07 | |||
| NGC 6818 | 0.09 | 0.7 | 1.00 | 16.3 | 0 | 3.80 |
| NGC 7008 | 0.42 | −1.5 | 1.00 | 13.7 | 93 | 6.07 |
| Sp 3 | 0.31 | −3.7 | 1.00 | 13.1 | 45 | 3.02 |
Notes. Rows with blank first columns indicate the Gaia-detected companion of the (assumed) PN progenitor in the row above. Single rows indicate that Gaia has not resolved the pair. (a)Literature separation, except where noted. Most values are from Ciardullo et al. (1999), except for EGB 6 (Liebert et al. 2013) and NGC 6818 (Benetti et al. 2003). (b)Difference in HST V magnitude between ionising star and companion (a positive difference indicates companion is fainter). (c)Reliability. (d)IPD multipeak fraction. (e)Gaia value, within 0′′.02 of literature HST value. (f)The ionising starof NGC 3132 is thought to be the fainter of the pair, so highest reliability match here is not correct in that sense.
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