traced_luminosities_from_stars#

silmaril.imaging.traced_luminosities_from_stars(x_viewed, y_viewed, flux, source_grid, traced_pixel_corners, nonempty_pixels=None)#

Lenses the given source galaxy directly from particle data and returns a 2d array of luminosity values corresponding to pixels on the image plane.

Parameters:

  • x_viewed (numpy.ndarray) – array of particle x coordinates in arcseconds

  • y_viewed (numpy.ndarray) – array of particle y coordinates in arcseconds

  • flux (numpy.ndarray) – array of particle fluxes in Jy

  • traced_pixel_corners (numpy.ndarray) – grid of source plane coordinates of the corners of each pixel on the image plane

  • nonempty_pixels (np.ndarray) – list of indices of pixels on the image plane that fall on the source image when traced back to the source plane

Returns:

luminosities – array of luminosity values in Jy/arcsec^2

Return type:

numpy.ndarray