ip_spectra_extract

ip_spectra_extract reads the shadowgram for each input energy band and the name and coordinates of the source for which a spectrum will be extracted. Since PICsIT operates in an energy range with a few sources, this executable works for one source only.

For each output energy band, it:

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creates a model (PIF) for the source. The Pixel Illumination Factor (PIF) is a number between 0 and 1, which expresses the theoretical degree of illumination of each pixel in the detector plane of a coded-mask instrument. The PIF is calculated on the basis of the position and is normalized to 1 cts/pix source. The present PIF is purely geometrical.

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by taking into account that there is one single source with ideal PIF, than the Equation at pag. L228 of Goldwurm et al. (2003) can be simplified. In this case, all the pixel counts, depending on the PIF values, are due to the selected single source. That is, deviations from the average counts in the observed shadowgrams are due entirely to the source.

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writes the source count rates in the selected energy bands and the PIF.

Table 24: ip_spectra_extract parameters included into the main script.

Name	Name	Type	Description
(in the main script)	(executable)
PICSIT_source_name	inName	string	Name of the source for extracting PICsIT spectrum default: `` ''
PICSIT_source_RA	inRA	real	RA of the source for extracting PICsIT spectrum default: `` ''
PICSIT_source_DEC	inDEC	real	DEC of the source for extracting PICsIT spectrum default: `` ''
PICSIT_source_inOG	inOG	string	DOL of the input Observation group default: `` ''
PICSIT_source_Shadow	inShadow	string	DOL of the input Shadowgrams default: `` ''
PICSIT_source_mask	maskG	string	DOL of the IBIS mask model default: `` ''
PICSIT_source_outOG	outOG	string	DOL of the output Observation group default: `` ''
PICSIT_source_outPIF	outpif	string	DOL of the PIF index default: `` ''
PICSIT_source_outSpec	outSpec	string	DOL of the output spectra default: `` ''