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Дата изменения: Tue Aug 16 03:03:59 2005
Дата индексирования: Sat Dec 22 10:08:08 2007
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Поисковые слова: universe

XMM-Newton Science Analysis System


ewavelet (ewavelet-3.7) [xmmsas_20050815_1803-6.5.0]

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Future developments

• FFT routines may still need some performance optimization, as not all the functionality of the FFTW package is currently used.
• Galactic coordinates are not yet calculated, but this can change in the near future.
• Currently preference is given to small sources over extended sources if they are present near the same coordinates. It would be nice to have a good selection criterium to include also extended sources in the final source list if it is clear that the signal is not caused by the small scale source.
• More work has to be done on the error estimates of source parameters.
• Countrates are estimated assuming that the source shape is a gaussian. Unresolved sources have the shape of the PSF. This means that for point-like source we can in future calibrate the true countrates versus the wavelet countrates, for small wavelet scales. However, this involves a lot of calibration work and/or numerical simulations.