Matched filters for source detection in the Poissonian noise regime
Abstract
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.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- August 2006
- DOI:
- 10.1051/0004-6361:20053498
- arXiv:
- arXiv:astro-ph/0603365
- Bibcode:
- 2006A&A...454..997S
- Keywords:
-
- methods: data analysis;
- techniques: image processing;
- X-rays: general;
- Astrophysics