pymf.power_spec

pymf.power_spec(image, pixel_size_arcmin, return_k=False)

Computes the azimuthally-averaged power spectrum of a given map.

Parameters:

image: 2D float array

Input image

pixel_size_arcmin: float

Pixel size in arcmin.

return_k: bool, optional

If set to True, the provided image is assumed to be a power spectrum and the x-coordinate of the returned data is converted to the two-dimensional spatial frequency k. Default: None

Returns:

k: float array

x-coordinate of the radial profile. Either the radial separation from the image center or spatial frequency k, depending on the value of the variable return_k.

Pk: float or complex array

azimuthally-averaged power spectrum