Extensions

These stages are written for TXPipe extension projects.

• TXSelfCalibrationIA - This is the subclass of the Twopoint class that will handle calculating the

class txpipe.extensions.twopoint_scia.TXSelfCalibrationIA(*args: Any, **kwargs: Any)

This is the subclass of the Twopoint class that will handle calculating the correlations needed for doing the Self-calibration Intrinsic alignment estimation.

It requires estimating 3d two-point correlations. We calculate the galaxy - galaxy lensing auto-correlation in each source bin. We do this twice, once we add a selection-function, such that we only selects the pairs where we have the shear object in front of the object used for density, these are the pairs we would expect should not contribute to the actual signal. Once without imposing this selection funciton.

call_treecorr(data, meta, i, j, k)

This is a wrapper for interaction with treecorr.

run()

Run the analysis for this stage.