Table 1
Comparison counts with previous works.
| Reference | Total | Reliability | Disagreements | |
|---|---|---|---|---|
| >0.8 | <0.2 | |||
| KB18 | 362 | 305 | 37 | 22 |
| (84%) | (10%) | (7%) | ||
| blue sources(a) | 82 | 80(b) | 0 | 0 |
| (98%) | (0%) | (0%) | ||
| σω∕ω < 0.15 | 76(c) | 68 | 3 | 2 |
| (89%) | (3%) | (2%) | ||
| σω∕ω < 0.25 | 106(c) | 89 | 9 | 4 |
| (84%) | (8%) | (4%) | ||
| GS19 | 175(d) | 120 | 37 | 18 |
| (69%) | (21%) | (10%) | ||
| S+20 | 380(e) | 295 | 56 | 35 |
| (78%) | (15%) | (9%) | ||
| σω∕ω < 0.2 | 131 | 100 | 19 | 13 |
| (76%) | (15%) | (10%) | ||
Notes. Counts consider only confirmed PNe in HASH where the reference Gaia source is within 60′′ of the HASH position. Disagreements are PNe for which our method found a different, plausible best match (reliability >0.2), which is independent of the reliability assigned to the reference match (so most disagreements contribute also to the count of reliability <0.2 matches). The symbol ω is used for parallax, so σω ∕ω is relative parallax error. (a) Sources with −0.65 < BP – RP < −0.25. (b) There are two blue sources withhigh angular separation that we believe to be correct in KB18; they were selected by our method but with lower reliability on account of their offsets.(c)Following KB18, these samples are also restricted to parallax derived distances within 4kpc. (d) Not including three sources outside our 60′′ search radius. See text. (e) Not including two sources outside our 60′′ search radius. See text.
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