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##

agauss, zagauss: gaussian line profile in wavelength
space

A simple gaussian line profile. If the width is then it is treated
as a delta function. The zagauss variant computes a redshifted
gaussian.

where:

par1 = |
line wavelength in Angstrom |

par2 = |
line width in Angstrom |

Norm = K |
total photons/cm/s in the line |

For zagauss the corresponding formula is:

and the parameters are:

par1 = |
line wavelength in Angstrom |

par2 = |
line width in Angstrom |

par3 = z |
redshift |

Norm = K |
total photons/cm/s in the line |