Bases: astropy.convolution.Kernel2D
2D Moffat kernel.
This kernel is a typical model for a seeing limited PSF.
Parameters: | gamma : float
alpha : float
x_size : odd int, optional
y_size : odd int, optional
mode : str, optional
factor : number, optional
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See also
Gaussian2DKernel, Box2DKernel, Tophat2DKernel, MexicanHat2DKernel, Ring2DKernel, TrapezoidDisk2DKernel, AiryDisk2DKernel
Examples
Kernel response:
import matplotlib.pyplot as plt from astropy.convolution import Moffat2DKernel moffat_2D_kernel = Moffat2DKernel(3, 2) plt.imshow(moffat_2D_kernel, interpolation='none', origin='lower') plt.xlabel('x [pixels]') plt.ylabel('y [pixels]') plt.colorbar() plt.show()(Source code, png, hires.png, pdf)
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