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The Submillimeter Properties of the 1 Ms Chandra Deep Field North X-ray Sample

A. J. Barger·L. L. Cowie·A. T. Steffen·A. E. Hornschemeier·W. N. Brandt·G. P. Garmire
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Abstract

We present submillimeter observations for 136 of the 370 X-ray sources detected in the 1 Ms exposure of the Chandra Deep Field North. Ten of the X-ray sources are significantly detected in the submillimeter. The average X-ray source in the sample has a significant 850 micron flux of 1.69+/-0.27 mJy. This value shows little dependence on the 2-8 keV flux from 5e-16 erg/cm^2/s to 1e-14 erg/cm^2/s. The ensemble of X-ray sources contribute about 10% of the extragalactic background light at 850 microns. The submillimeter excess is found to be strongest in the optically faint X-ray sources that are also seen at 20 cm, which is consistent with these X-ray sources being obscured and at high redshift (z>1).

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A. J. Barger, L. L. Cowie, A. T. Steffen, A. E. Hornschemeier, W. N. Brandt, G. P. Garmire. 2001-07-13. The Submillimeter Properties of the 1 Ms Chandra Deep Field North X-ray Sample. https://doi.org/10.1086/324062

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