Differences

This shows you the differences between two versions of the page.

--- tools:mfit [2021/08/16 13:54]
aperignon
+++ tools:mfit [2022/01/14 15:29] (current)
cjoblin
@@ Line 1: / Line 1: @@
-==== Description ====
+===== cosmicPAHmfit =====
-Mfit is an infrared emission spectroscopy fitting tool written in python language.
+==== Detailed description ====
-**Mfit** has been developed to assists scientists when fitting voigts to a spectral line profile.
-Until this tool was available, it was done manually in IDL.
-Mfit has a graphical interface to select the intensity flux where we want to fit a voigt. The tool tries to automatically adapt it over the profile but we can manually edit the voigt parameters and add multiples voigts.
+cosmicPAHmfit is a python fitting tool. It performs a multi-component fit of the selected spectral feature using pseudo-Voigt functions (linear combination of a Gaussian curve and of a Lorentzian curve modified by an asymmetry factor). It computes the area-weighed peak position and width of the feature. It has a graphical interface to select the spectral feature of interest as well as the number of components to be included in the fit.\\