ChandraCXC / iris-dev

repository for tracking Iris development tasks

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bug in model plotting units conversion

olaurino opened this issue · comments

Something may be wrong in the way units of the evaluated model are computed. To reproduce:

  • Load a SED (e.g. NED Segment from the Test Builder).
  • Fit it (e.g. with a broken power law, LevMar and Chi2).
  • Display it.

Everything is fine at this point. Also, a units conversion has probably happened because the display is in Jy vs Hz, while the fitting was in photon/s/cm2/Angstrom vs Angstrom.

Now, switch X units from Hz to Angstrom. It still works.

Now, switch Y Units from Jy to ergs/s/cm2. The data is converted, the model function is stuck.