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gbrammer / threedhst

3D-HST grism analysis software
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aXe model is broader than observed grism spectra #4

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
If you subtract the model image from the grism image, you see that the model is 
frequently more spatially extended than the actual spectra, i.e. there is a 
narrow core in the residual image.  

Is this the result of parameters to the aXe IRAF tasks or is it coming from 
somewhere deep within aXe?  

I would think that it would get the profiles right if it's using the direct 
image segmentation map, though perhaps there's a smoothing term somewhere when 
it is translated to the grism exposures.

Original issue reported on code.google.com by gbrammer on 27 Sep 2010 at 3:05