Gaussian-Shaped Emission Line

The last selectable standard spectrum is a gaussian-shaped emission line. The parameters are: central wavelength, FWHM and total flux. The magnitude of the source is not a free parameter anymore due to the total flux given by the user:

f ($\displaystyle \lambda$) = FLUX . $\displaystyle {\frac{{1}}{{\upsigma \sqrt{2\uppi}}}}$ . e-$\scriptstyle {\frac{{(\lambda-\Gamma)^2}}{{2\upsigma^2}}}$ (14)

$ \upsigma$ is given by FWHM/2.35, FLUX the total flux and $ \Gamma$ the central wavelength.

Andre Germeroth 2014-07-17