Volume 454, Number 3, August II 2006
|Page(s)||997 - 1009|
|Section||Instruments, observational techniques, and data processing|
|Published online||17 July 2006|
Matched filters for source detection in the Poissonian noise regime
Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK
2 Jodrell Bank Observatory, University of Manchester, Macclesfield SK11 9DL, UK e-mail: email@example.com
Accepted: 9 February 2006
A procedure is described for estimating an optimum kernel for the detection by convolution of signals among Poissonian noise. The technique is applied to the detection of X-ray point sources in XMM-Newton data, and is shown to yield an improvement in detection sensitivity of up to 60% over the sliding-box method used in the creation of the 1XMM catalog.
Key words: methods: data analysis / techniques: image processing / X-rays: general
© ESO, 2006
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