Errors

• Pick just one point in the peak to see how it varies
• Plot both sigma per exposure time and sigma against exposure time
• see how sigma varies with intensity

Fit

• To test the Gaussian generate a gaussian with known parameters
• Give the Gaussian Poisson errors
• Then use our fit to to fit to the Gaussian and try to find what is wrong
• Check the means, take out circle mean

Mapping

• Flip the plot so that the errors in the position can be used
• Read the spectrometer manual
  • Look at what depends on the tan of the angle
  • Prove the equations and find any extra terms, the fit may not be a polynomial

Vega Line

• See how necessary the instrumental response is
• See which dominates, or to see whether the gaussian or Lorentz is dominant in the fit
• See if is non zero, i.e test this hypothesis
• Use least squares in python so can give it the correct objective function, Maximum likleyhood

Presentation

• Put images of each frame into a grid
• Be clear in plots as to what is being convoluted and what is being added