The (un)resolved X-ray background in the Lockman Hole

Details The (un)resolved X-ray background in the Lockman Hole The (un)resolved X-ray background in the Lockman Hole

2004-04-14

arxiv.org/abs/astro-ph/0404273v2

Mon.Not.Roy.Astron.Soc.352:L28,2004

Astronomy and Astrophysics

Astrophysics

6 pages, 6 figures, MNRAS Letters, in press, changed to reflect accepted version

Scientific paper

10.1111/j.1365-2966.2004.08142.x

Most of the soft and a growing fraction of the harder X-ray background has been resolved into emission from point sources, yet the resolved fraction above 7 keV has only been poorly constrained. We use ~700 ks of XMM-Newton observations of the Lockman Hole and a photometric approach to estimate the total flux attributable to resolved sources in a number of different energy bands. We find the resolved fraction of the X-ray background to be ~90 per cent below 2 keV but it decreases rapidly at higher energies with the resolved fraction above ~7 keV being only ~50 per cent. The integrated X-ray spectrum from detected sources has a slope of Gamma~1.75, much softer than the Gamma=1.4 of the total background spectrum. The unresolved background component has the spectral signature of highly obscured AGN.

Affiliated with

Also associated with

No associations

Rating

The (un)resolved X-ray background in the Lockman Hole does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The (un)resolved X-ray background in the Lockman Hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The (un)resolved X-ray background in the Lockman Hole will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-9262