Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/7.1.0/doc/omphotom/node6.html
Дата изменения: Mon Jul 9 06:00:56 2007
Дата индексирования: Sat Dec 22 09:53:24 2007
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XMM-Newton Science Analysis System


omphotom (omphotom-0.6.6) [xmmsas_20070708_1801-7.1.0]

Meta Index / Home Page / Usage

Command-line lists of parameters

1. omphotom imageset=P0123920101OMS006IMAGE_1000.FIT backgroundimageset=P0123920101OMS006IMAGE_1000.FIT oldsrclistset=P0123920101OMS006SWSRLI1000.FIT newsrclistset=test.fits sourceno=1 phototype=0 aperturer=6 innera=8 outera=13

   Recomputing the photometry for source no 1 from the source-list file P0123920101OMS006SWSRLI1000.FIT, using the image P0123920101OMS006IMAGE_1000.FIT. The photometry is computed by aperture photometry (phototype=0) with an aperture of 6 image pixels (aperturer=6), an inner background annulus radius of 8 image pixels (innera=8) and an outer background annulus radius of 13 image pixels (outera=13).

2. omphotom imageset=P0123920101OMS006IMAGE_1000.FIT backgroundimageset=P0123920101OMS006IMAGE_1000.FIT oldsrclistset=P0123920101OMS006SWSRLI1000.FIT newsrclistset=test.fits sourceno=1 phototype=1 aperturer=6.0 background=10.0

   Recomputing the photometry for source no 1 from the source-list file P0123920101OMS006SWSRLI1000.FIT, using the image P0123920101OMS006IMAGE_1000.FIT. The photometry is computed by aperture photometry (phototype=1) with an aperture of 6 image pixels (aperturer=6), and using a value for the background counts per pixel of 10 counts.

3. omphotom imageset=P0123920101OMS006IMAGE_1000.FIT oldsrclistset=P0123920101OMS006SWSRLI1000.FIT newsrclistset=test.fits sourceno="1 2" phototype="0 0" aperturer="6 8" innera="8 10" outera="13 16"

   Recomputing the photometry for sources numbered 1 and 2 from the source-list file P0123920101OMS006SWSRLI1000.FIT, using the image P0123920101OMS006IMAGE_1000.FIT. For both sources the photometry is computed using aperture photometry (phototype=''1, 1'') with apertures of 6 and 8 image pixels (aperturer=''6 8''), inner background annulus radii of 8 and 10 image pixels (innera=''8 10'') and outer background annulus radii of 13 and 16 image pixels (outera=''13 16'').

4. omphotom imageset=P0123920101OMS006IMAGE_1000.FIT oldsrclistset=P0123920101OMS006SWSRLI1000.FIT newsrclistset=test.fits sourceno=1 phototype=-1 aperturer=6 innera=8 outera=13 axialratio=5 pa=90

   Recomputing the photometry for source no 1 from the source-list file P0123920101OMS006SWSRLI1000.FIT, using the image P0123920101OMS006IMAGE_1000.FIT. The source is treated as being extended (phototype=-1) and aperture photometry is conducted using an aperture of 6 image pixels (aperturer=6), an inner background annulus radius of 8 image pixels (innera=8) and an outer background annulus radius of 13 image pixels (outera=13), an axial-ratio (semi-major/semi-minor axis) of 5 and a semi-major position angle of (90 degrees).

5. omphotom imageset=P0123920101OMS006IMAGE_1000.FIT oldsrclistset=P0123920101OMS006SWSRLI1000.FIT newsrclistset=test.fits sourceno="1 2" phototype="0 -1" aperturer="6 8" innera="8 10" outera="13 16 axialratio=''0 5'' pa=''0 95''

   Recomputing the photometry for sources numbered 1 and 2 from the source-list file P0123920101OMS006SWSRLI1000.FIT, using the image P0123920101OMS006IMAGE_1000.FIT.

   Source number 1 is treated as a point-source and the photometry is computed using aperture photometry (phototype=1) with an aperture of 6 image pixels (aperturer=6), an inner background annulus radius of 8 image pixels (innera=8) and an outer background annulus radius of 13 image pixels (outera=13).

   Source number 2 is treated as being extended (phototype=-1). Extended photometry is conducted using an elliptical aperture of semi-major axis 6 image pixels (aperturer=6), an axial-ratio (semi-major/semi-minor axis) of 5 and a semi-major position angle of (95 degrees).

   The background is subtracted using the pixels within the elliptical annulus with an inner background annulus radius of 8 image pixels (innera=8) and an outer background annulus radius