Laurel Carpenter Research Journal (Summer '22)



  • test with 5hr on-source observation whether using "normalization" keyword in xml model generation gives different result than "prefactor" keyword
    • up to this point, have used prefactor keyword
    • as hoped, results are the same whether "normalization" or "prefactor" is used



  • new attempt at generating xml models for 50hr on-source observations for gas map, goes much faster now
  • master comparison of spectral params for 50hr on-source observations (xmm radial shell, xmm model, and gas model)
    • to do: generate maps/models for gas radial shell
    • add offset=3deg observations to comparison



  • takes a really long time to generate xml models and fits for 50hr observation using gas template
    • probably because the image used for gas template is much larger than the x-ray image we were using previously
    • the FOV of this image is much larger than the actual source, find a way to crop image to same dimensions as x-ray image


  • look at skymaps/residuals using Massimo's jupyter notebook as opposed to editing in ds9 (faster, easier, looks better)
  • radial shell is not best fit, gaussian fit does not converge (as expected), now use x-ray image as map
    • results are much better than radial shell (expected)
    • generate observations for offset=3deg (so far we have only done on-source)
    • create TS map
  • jupyter notebook to easily read out params from xml file:
    • /nevis/milne/files/lc3471/data/CTA/Simulations/out/read_xml.ipynb


  • unable to save edited fits files from ds9 as png images
    • tried as jpeg, tiff, gif, etc as well
    • issue is that on some mac os, save image will not work if the ds9 window is not exactly positioned at (0,0) in the screen display
  • create circle or annulus region in ds9 (showing radial shell fit):

-- Laurel Carpenter - 2022-06-16


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Topic revision: r4 - 2022-07-05 - LaurelCarpenter
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