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Table 3
Effect of the hot subluminous star selection criteria for the parallax selection and the proper motion selection as outlined in Sect. 3.
| Selection criteria | Object count |
|---|---|
| Parallax selection criteria: | |
| 1. Parallax >0, parallax error <20%, initial hot subdwarf CMD ranges | 3 213 406 |
| 2. Position 1 + astrometric quality criteria | 3 213 398 |
| 3. Position 2 + photometric quality criterion | 3 195 369 |
| 4. Position 3 + CMD main sequence rejection criterion | 16959 |
| 5a. Position 4 + no apparent neighbours within 5 arcsec | 10672 |
| 5b. Position 4 + faint apparent neighbours within 5 arcsec | 1147 |
| 5c. Position 4 + bright apparent neighbours within 5 arcsec + strict hot subdwarf cutoff | 1304 |
| 6. Final parallax selection 5a + 5b + 5c | 13 123 |
| Proper Motion Selection Criteria | |
| 7. Hot subdwarf colour-H_G range, parallax error ≥20% | 7 390 541 |
| 8. Position 7 + proper motion error <20% | 6 860 074 |
| 9. Position 8 + removal of the Magellanic Clouds direction | 4856823 |
| 10. Position 9 + astrometric and photometric quality criteria | 4784233 |
| 11. Position 10 + colour-H_G main sequence rejection criterion | 92409 |
| 12a. Position 11 + no apparent neighbours within 5 arcsec | 66393 |
| 12b. Position 11 + faint apparent neighbours within 5 arcsec | 7044 |
| 13. Positions 12a+12b + white dwarf rejection criterion | 48 462 |
Notes. The definition of ‘bright’ and ‘faint’ apparent neighbours is described in Sect. 3.
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