Seeing

This module holds the 1D Gaus-Kolmogorov provile commonly used to describe effects of atmospheric seeing on a point source. The function is described in:

Bektesevic & Vinkovic et. al. 2017 (arxiv: 1707.07223)
class lfd.analysis.profiles.seeing.GausKolmogorov(fwhm, scale=None, res=0.001, **kwargs)[source]

Simple Gaus-Kolmogorov seeing. Convolving with this function has the effect of blurring the original object.

Parameters:
  • fwhm (float) – FWHM of the Gaus-Kolmogorov profile
  • scale (list, tuple or np.array) – if scale is given then GK will be evaluated over it
  • res (float) – if scale is not given one will be created from the estimated width of the GK profile and resolution in arcseconds
f(r, sigma=None)[source]

Evaluates the GK at a point r. Providing sigma estimates GK at r for a different GK distribution with a FWHM= sigma*2.436/1.035 - for convenience only.