Fig. 3
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Characterisation of the refined sample of 1542 new S3 stellar candidates (see Sect. 3.1). Top left panel: CMD of the S3 training sample by N19 (orange circles) and the new S3 candidates (beige circles). The background image corresponds to the CMD of the Gaia DR3 sample utilised in this study (see Sect. 2.2). Top centre and right panels: proper motion normalised distributions in right ascension (μα*) and declination (μδ), respectively. Bottom from left to right: parallax (ϖ) and proper motion error normalised distributions in right ascension (σμα*) and declination (σμδ). In the histograms, the S3 training sample from N19 is shown in orange and the new S3 candidates in beige.
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