RHUL Physics Department TWiki> Public Web>UserList>StewartBoogert>StewartBoogertAstronomy>StewartBoogertMSciProjects>StewartBoogertSpectroscopy2015>20151203_MSciSpectrocopyMeeting (08 Dec 2015, JosephBayley) EditAttach

- 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

- 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

- 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

- 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

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

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Topic revision: r2 - 08 Dec 2015 - JosephBayley

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