XMM-Newton Science Analysis System


omgrism (omgrism-1.30) [xmmsas_20230412_1735-21.0.0]

Parameters

This section documents the parameters recognized by this task (if any).

Parameter	Mand	Type	Default	Constraints
set	yes	string
OM image file with grism spectra aligned with respect to the columns of the image (output from omgprep).
sourcelistset	yes	string
Source list (output from OMDETECT)
outset	yes	string
Output spectra file
regionfile	no	string
Name of the ASCII (input) region file
spectraregionfile	no	string
Name of the ASCII (output) spectra region file
outspectralistset	no	string
Output file containing the extracted spectra list (in a brief form)
extractfieldspectra	no	logical	false
If set to true switches the task into the mode for extraction of all available spectra in the field
spectrumhalfwidth	no	real	-8.	-20 to 20
Halfwidth of the spectrum extraction region; expressed in pixel, if negative, or in FWHWs, if positive
bkgoffsetleft	no	real	0.	-20 to 20
Offset of the left background extraction region (from the left edge of the spectrum extraction region); in pixels, if negative, or in FWHWs otherwise.
bkgwidthleft	no	real	-8.	-40 to 40
Width of the left background extraction region; in pixels, if negative, or in FWHWs otherwise.
bkgoffsetright	no	real	0.	-20 to 20
Offset for the right background extraction region (from the right edge of the spectrum extraction region); in pixels, if negative, and in FWHWs otherwise.
bkgwidthright	no	real	-8.	-40 to 40
Width of the right background extraction region; in pixels, if negative, or in FWHWs otherwise.
spectrumsmoothlength	no	integer		$\geq 0$
Length of the smoothing window for smoothing the output spectra (if smoothing is desirable); the parameter set to 0 or 1 implies no smoothing.
extractionmode	no	integer		extractionmode $\geq 0$
Switch between different extraction modes. The value 0 corresponds to the normal extraction (summation of counts in the cross-dispersion direction); 1 corresponds to the Optimal Extraction (Horne's algorithm); 2 corresponds to the one-dimensional spline smoothing (in the cross-dispersion direction); 3 corresponds to the one-dimensional Gaussian fit (in the cross-dispersion direction).
Parameter	Mand	Type	Default	Constraints