XMM-Newton Science Analysis System
evigweight (evigweight-1.6) [xmmsas_20050815_1803-6.5.0]
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In the same way, constructing an image
of the source
within the energy band
may be done by calling evselect
(with withzcolumn=Y withzerrorcolumn=N) :
This is directly proportional to the source brightness
(no need to divide by the exposure map), except for bad pixels and CCD gaps
(see Sect.3.9).
XMM-Newton SOC/SSC -- 2005-08-16