Fractions of obscured (with HR > − 0.4) X-ray AGN with respect to their mid-infrared (24 μm) to optical flux ratio and RC − K colour.
|(inside wedge)||(outside wedge)|
|f24 μm/fRC > 100||38/56 (67.9%)||18/34 (52.9%)|
|f24 μm/fRC < 100||13/57 (22.8%)||33/63 (52.4%)|
|RC − K > 4||40/55 (72.7%)||36/64 (56.3%)|
|RC − K < 4||11/58 (19.0%)||15/33 (45.5%)|
Notes. Here an RC − K = 4 division is used to denote optically obscured and unobscured objects. This is a more modest limit than the RC − K = 5 used in this paper and elsewhere to select EROs.
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