Cilou on 30-Mar-2017 11:14:34 GMT about AGN candidates from the WISE, 2MASS, RASS (W2R) (Edelson+, 2012)
It should be noted that more than half of these AGN candidates were already known as confirmed AGN, QSO, or Seyfert galaxies.
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View annotation on catalogue J/ApJ/751/52