forced_photometry

scarlet2.measure.forced_photometry(scene, obs)

Computes the spectra of every source in the scene to match the observations

Computes the best-fit amplitude of the rendered model of all components in every channel of every observation as a linear inverse problem.

If sources/sources components in scene have non-flat spectra, the output of this function is the correction factor that needs to be applied to those spectra to best match each channel of obs.

Parameters:

• scene (scarlet2.scene.Scene) – Scene for which the spectra should be computed

• obs (Observation) – The observation used to determine the spectra.

Returns:

Array of the spectra, in the order of the sources in the scene

Return type:

array