cwitools.subtraction.psf_sub_2d

cwitools.subtraction.psf_sub_2d(inputfits, pos, fit_rad=1.5, sub_rad=5.0, wl_window=200, wmasks=[], recenter=True, recenter_rad=5)

Models and subtracts point-sources in a 3D data cube.

Args:

inputfits (astrop FITS object): Input data cube/FITS. fit_rad (float): Inner radius, used for fitting PSF. sub_rad (float): Outer radius, used to subtract PSF. pos (float tuple): (x,y) position of the source to subtract. recenter (bool): Recenter the input (x, y) using the centroid within a

box of size recenter_box, arcseconds.

recenter_rad(float): Radius of circle used to recenter PSF, in arcsec. wl_window (int): Size of white-light window (in Angstrom) to use.

This is the window used to form a white-light image centered on each wavelength layer. Default: 200A.

wmasks (list): List of wavelength tuples to exclude when making

white-light images. Use to exclude nebular emission or sky lines.

Returns:

numpy.ndarray: PSF-subtracted data cube numpy.ndarray: PSF model cube