vis_psf_image#

xrayvision.imaging.vis_psf_image(
vis,
*,
shape=<Quantity [65.,
65.] pix>,
pixel_size=<Quantity 1. arcsec / pix>,
scheme='natural',
)[source]#

Create the point spread function for given u, v point of the visibilities.

Parameters:

  • vis (Visibilities) – Input visibilities

  • shape (Annotated[Quantity, Unit("pix")]) – Shape of the image, if only one value passed, assume square (repeating the value).

  • pixel_size (Annotated[Quantity, Unit("arcsec / pix")]) – Size of pixels, if only one value is passed, assume square pixels (repeating the value).

  • scheme (str) – Weight scheme, natural by default.

Returns:

Point spread function

Return type:

Quantity