Paper:	Efficient Data Mining in the X-ray Sky Background
Volume:	314, Astronomical Data Analysis Software and Systems XIII
Page:	812
Authors:	Cunniffe, J.; Meurs, E.J.A.; Golden, A.
Abstract:	The calculation of flux upper limits in the source-free ("background") regions of photon-limited images is complicated by instrumental and statistical modeling and requires non-trivial computational effort. We propose a scheme where the properties of source-free image regions are pre-calculated and catalogued in a compact form to allow rapid estimation of flux limits and statistical properties of the background. For the case of X-ray data, we examine the expected speed-up in massive all-sky queries resulting from such a system to pre-screen coordinate requests before running a full analysis.

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