Table 2.

Definition of the parameters used in the main decision tree in Fig. 5.

Parameter Definition
Large optical galaxy 2MASX size (rext) ≥60″
Large PYBDSF major axis > 15″
Bright Total flux density > 10 mJy
Isolated Distance to nearest PYBDSF neighbour (NN) > 45″
S Single Gaussian component within an island
LR LR >  0.639
Clustered Distance to fourth nearest PYBDSF neighbour < 45″
NN LR LRNN >  0.639
Flux ratio S/SNN <  10
Separation criterion S + SNN ≤ 50(dNN/100″)2 mJy

Notes. See Sect. 6 for details.

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