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Table 2

Photometric and morphometric selection criteria adopted.

Quantity Passband Range adopted
for selection
ΔX6−12 (mag) All ≥0.075
CLASS_STAR r ≤0.95
CLASS_STAR i ≤0.95
PSF FWHM (pixels) u ≥4.5
PSF FWHM (pixels) g ≥4.1 & <15
PSF FWHM (pixels) r ≥4.25 & <15
PSF FWHM (pixels) i ≥3.9 & <15
Flux Radius (pixels) u ≥3.2 & <10
Flux Radius (pixels) g ≥3 & <10
Flux Radius (pixels) r ≥3 & <10
Flux Radius (pixels) i ≥2.5 & <15
Axis Ratio ba All ≥0.67
Δ mag All ≤0.25
mbright-mfaint (mag) u 18–25
mbright-mfaint (mag) r 16.5–23.5
mbright-mfaint (mag) g 16–23
mbright-mfaint (mag) i 16–23

Explanation of listed parameters. ΔX6−12: threshold for the magnitude concentration index. SExtractor parameters: CLASS_STAR: Neural-Network-based star/galaxy classifier; PSF FWHM: point spread function full width at half maximum; Flux Radius: half light radius; axis-ratio: semi-minor over semi-major axis ratio (see Bertin & Arnouts 1996, and references therein for more details). Other selection parameters. Δ mag: maximum error on magnitude; mbright-mfaint bright and faint magnitude cuts (see text).

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