add_magnification

Add magnification terms to C_ell

File	structure/magnification/add_magnification.py
Attribution	Niall MacCrann
	Jack Elvin-Poole
URL

Magnification affects both the galaxy density and galaxy galaxy-lensing spectra, adding extra terms to each. The module finds and adds those terms.

For density (g), we have gg -> gg + gm + mg + mm For density shear (gG) we have gG -> gG + mG where m is magnification.

We can also include intrinsic aligment (I) - magnification interactions, in which case the module does: gG + gI -> gG + gI + mG + mI

Assumptions

None

Setup Parameters

Name	Type	Default	Description
galaxy-galaxy	bool	True	Whether to add magnification terms to galaxy density spectra
galaxy-shear	bool	True	Whether to add magnification terms to galaxy density-lensing cross-spectra
include_intrinsic	bool	False	Whether to add include intrinsic alignment magnification terms

Input values

Section	Name	Type	Default	Description
galaxy_cl	nbin	int		Number of bins in this spectrum
	ell	int 1d		Angular wavenumber values for the spectra
	auto_only	bool	False	Whether this bin only contains auto spectra
	bin_i_j	real 1d		C_ell values for the galaxy density spectra in bin pair i, j
galaxy_shear_cl	nbin_a	int		Number of galaxy density bins in this spectrum
	nbin_b	int		Number of shear bins in this spectrum
	ell	int 1d		Angular wavenumber values for the spectra
	bin_i_j	real 1d		C_ell values for the density-shear cross-spectra in bin pair i, j
galaxy_magnification_cl	ell	int 1d		Angular wavenumber values for the spectra. Can be different to the density/shear ones
	bin_i_j	real 1d		C_ell values for the density-magnification cross-spectra in bin pair i, j
magnification_cl	ell	int 1d		Angular wavenumber values for the spectra. Can be different to the density/shear ones
	bin_i_j	real 1d		C_ell values for the density-magnification cross-spectra in bin pair i, j

Output values

Output values

Section	Name	Type	Description
galaxy_cl_gg	ell	int 1d	Angular wavenumber values for the spectra.
	bin_i_j	real 1d	Copy of the density-shear cross-spectrum without any modifications made
galaxy_cl	bin_i_j	real 1d	Updated C_ell density values including magnification terms
galaxy_shear_cl	bin_i_j	real 1d	Updated C_ell cross-spectra values including magnification terms