Fig. 7
Left panel: WISE colour–colour (W1−W2 vs. W2−W3) diagram for the sources identified by OCSVM as outliers in AllWISE. The plot shows only sources detected in the W3 band (188 496 objects comprising 38% of all the anomalies). The grey scale marks the density of displayed points in linear bins. Right panel: W1−W2 vs. W2−W3 diagram for AllWISE×SDSS sources used for OCSVM training. We note the different ranges of the axes in the two panels.
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