Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/7.1.0/doc/backcorr/backcorr.html
Дата изменения: Mon Jul 9 09:17:27 2007
Дата индексирования: Sat Dec 22 12:48:37 2007
Кодировка:
Поисковые слова: redshift survey

XMM-Newton Science Analysis System


backcorr (backcorr-3.6) [xmmsas_20070708_1801-7.1.0]

Meta Index

backcorr

Abstract:

backcorr makes a background spectrum appropriate to the accumulation region used for a given source spectrum. The task calls arfgen twice; once for the source region and once for the background region. The regions are read directly from the input datasets by arfgen . This gives the integrated effective area as a function of energy over both regions. From these two effective area curves, a direct normalization of the input background spectrum is performed.