--------------------------- fit_line ---------------------------

   Data set: Capella(1318), Mkn 421(457), and Sim_1318; hist_index = 3

   Fit around: 15 A   (0.826567 keV)

Using count data
  Variable parameters = 3
            Data bins = 24
  Best fit chi-square =  2.9828e+01
Normalized chi-square =  1.4204e+00
Using count data
marquardt:  Too many iterations:  no decrease in chi-square
marquardt:  Too many iterations:  no decrease in chi-square
marquardt:  Too many iterations:  no decrease in chi-square

  ROI CORE counts: 21948.8

  Parameters for the CORE fit:

gauss(1)+poly(1)
 idx      param             tie-to  freeze         value          min          max
  1  gauss[1].area               0     0     1.9943005e+04    2.195e+03    2.195e+05
  2  gauss[1].center             0     0     1.4999931e+01    1.489e+01    1.511e+01
  3  gauss[1].sigma              0     0     7.3575426e-03    1.532e-03    3.830e-02
  4  poly[1].a0                  0     1     0.0000000e+00    0.000e+00    2.195e+05
  5  poly[1].a1                  0     1     0.0000000e+00   -1.000e+00    1.000e+00
  6  poly[1].a2                  0     1     0.0000000e+00   -1.000e+00    1.000e+00

  E/dE for the CORE fit = 867.538
   ( 840.558 to 894.543, 90 percent confidence )

Using count data
  Variable parameters = 2
            Data bins = 139
  Best fit chi-square =  1.2649e+02
Normalized chi-square =  9.2329e-01

  ROI WING counts: 1345.49

  Parameters for the WINGS fit:

lorentz(1)
 idx      param             tie-to  freeze         value          min          max
  1  lorentz[1].area             0     0     5.4842154e+03    4.036e+02    4.036e+04
  2  lorentz[1].center           0     1     1.4999931e+01    1.489e+01    1.511e+01
  3  lorentz[1].fwhm             0     0     2.9187441e-02    3.600e-03    9.000e-02