Dear all,
this is my first mounth of work on a CHANDRA observation; I have an ACIS-I
image which is strongly piled-up; in order to understand if there is
evidence of an X-ray scattering halo, I'm trying to compare the surface
brightness distribution (in different energy intervals) of my source with
that of its own PSF, which of course depends on energy ("its" because I
have calculated the PSF in the central point of my image through an
interpolation of librarie PSFs, following the CIAO threads). I wonder how
to normalize them...
Does someone have suggestions to give me, please?
thank you very much !
Elena Gallo
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