moffat
- pyetc.etc.moffat(samp, fwhm, beta, ell=0, kfwhm=2, oversamp=1, uneven=1)
compute a 2D Moffat image
- Parameters:
- samp
float image sampling in arcsec
- fwhm
float FWHM of the MOFFAT (arcsec)
- beta
float MOFFAT shape parameter (beta > 4 for Gaussian, 1 for Lorentzien)
- ell
float image ellipticity (Default value = 0)
- kfwhm
float factor relative to the FWHM to compute the size of the image (Default value = 2)
- oversamp
int oversampling gfactor (Default value = 1)
- uneven
int if 1 the image size will have an uneven number of spaxels (Default value = 1)
- samp
- Returns:
MPDAFimageMOFFAT image