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Table 1

Cross-match with the ALS-III catalogue (Pantaleoni González et al. 2025).

Catalogue HSS Theta-3 (≥1 epoch) Zari+21, MK<−0.6 Zari+21 (full)
(N total) N = 45 487 N = 320 871 N = 512 959 N = 988 202
ALS-III “M”
N=14 273 2960 6490 11 525 12 503
ALS-III (full)
N = 20 387 3005 7656 13 748 15 799

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