Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/7.0.0/doc/testodf/node8.html
Дата изменения: Wed Jun 28 22:12:53 2006
Дата индексирования: Sat Dec 22 08:37:36 2007
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Поисковые слова: ngc 253

XMM-Newton Science Analysis System


testodf (testodf-0.45.1) [xmmsas_20060628_1801-7.0.0]

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scisimf

This test ODF is an observation of nine point sources. Five form an F shape, and the other four form a smaller F shape with the middle source of the large F. The cluster extends over 0.25 degrees. Each source has a narrow Gaussian line spectrum, each around its own energy (1 keV, 2 keV up to 5 keV). These sources are observed with a spacecraft that is initially pointing to the source in the center and is drifting slowly during the observation.