Re: nsagrav XSPEC model not available for isis?

On Sun, Apr 06, 2008 at 15:24 -0300, juan luna wrote:
> Hi:
>
> I'm trying to load nsagrav models in isis, but it said
> that it is undefined, however other xspec models as
> mkcflow are loaded perfectly, any help?
>
> Thanks a lot!
> Juan


The isis distribution provides interfaces for both xspec11 and
xspec12, but the nsagrav model appears only in the xspec12
interface. The isis binaries on the web were compiled with
xspec11, so they do not provide nsagrav.

To use the nsagrav model from the xspec12 distribution, it is
necessary to build isis from source and link to the xspec12
libraries using e.g.

  ./configure ... --with-headas=$HEADAS --with-xspec-version=12

Thanks,
-John


P.S. Alternatively, if nsagrav is available as a local model
for xspec11, one could run the code generator to create source
code for a custom xspec module. Some details are discussed in

   modules/xspec/src/README.code

but, to generate the module source code, it may be sufficient
to set the HEADAS environment variable and then type:

  make custom-xspec11-module

in the top-level isis source directory.  Once the new source
code has been generated, compile and install as before:

  make clean
  make all install

(issuing both make commands from the isis top-level source
directory).

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