Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/7.1.0/doc/esrcmap.ps.gz Дата изменения: Mon Jul 9 08:50:47 2007 Дата индексирования: Tue Oct 2 10:10:32 2012 Кодировка: Поисковые слова: cygnus

XMM-Newton Science Analysis System Page: 1
esrcmap
July 9, 2007
Abstract
This task constructs a model image purely of contribution from sources.
1 Instruments/Modes
Instrument Mode
EPIC Imaging
2 Use
pipeline processing yes
interactive analysis yes
3 Description
As in the abstract.
4 Parameters
This section documents the parameters recognized by this task (if any).
Parameter Mand Type Default Constraints
srclisttab yes table
The input source list.
expression no string
Selection expression for the sources.
racol no string RA
Name of the column in which to nd the source RAs in decimal degrees.
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deccol no string DEC
Name of the column in which to nd the source Decs in decimal degrees.
ratecol no string RATE
Name of the column in which to nd the source brightness values.
templateset yes dataset
The output image has the same pixel dimensions and World Coordinates as this template image.
outset no dataset src image.ds
Name of the output dataset.
psfenergy yes real 0 The user should supply the energy (in eV) at which the source PSFs should be obtained.
energyfraction no real 0.99 0 1
The PSF image array is obtained with a size such that it contains this fraction of the PSF. Thus the
closer to 1, the larger the area devoted to each PSF. Choosing a small value will speed up processing,
but too small a value will be noticeable as a truncation into a small square of the source images.
tempimageset no dataset temp image.ds
Needed for pipeline useage.
5 Errors
This section documents warnings and errors generated by this task (if any). Note that warnings and
errors can also be generated in the SAS infrastructure libraries, in which case they would not be docu-
mented here. Refer to the index of all errors and warnings available in the HTML version of the SAS
documentation.
dummy (error)
**********dummy
6 Input Files
There are three types of FITS image input, listed below. All input images must share the same dimensions.
1. (Mandatory) a dataset containing a table of source positions. The dataset and table names,
separated by a colon, should be supplied to parameter srclisttab.
2. (Mandatory) a FITS dataset which contains an image in its primary extension. The name
of this dataset should be supplied to parameter templateset. The output image (outset)
is constructed so as to match templateset's pixel dimensions and World Coordinates.
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7 Output Files
The output dataset contains a 32-bit-real-valued image which is a model of the count rate at each pixel
which would be expected from the sources given in the input list.
8 Algorithm
**************Not yet written.
9 Comments
References
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