Instrument Model Bugs: farf2d/fexpmap/fexpmap2d

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11 Nov 2008

These are the webpages relative to Sherpa in the CIAO 3.4 release (18 December 2006). They are no longer actively updated, however the CXC will continue limited support of CIAO 3.4 for the near future.

15 Dec 2008

The newest version of the Chandra Interactive Analysis of Observations software, is CIAO 4.1, released on 15 December 2008. Read the release notes for detailed information. This release requires that CALDB 4.1.0 be installed for the software to work correctly.

Bugs

The fexpmap2d command does not work under Mac OS X 10.4 on PowerPC or Intel. (29 Jan 2007)
(Mac OS X)

Workaround:

To load an exposure map for use in image fitting, use the gridmodel model in its place:

  gridmodel[thename](emap.fits,1)
  source = <source expression> * thename

This is equivalent to the fexpmap2d syntax:

  source = <source expression>
  fexpmap2d[thename](emap.fits,1)
  instrument = thename