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

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

2001-07-13

arxiv.org/abs/astro-ph/0107252v1

ApJL, 560, L23 (2001)

Astronomy and Astrophysics

Astrophysics

5 pages, submitted to The Astrophysical Journal Letters

Scientific paper

10.1086/324062

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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