fastlens

fastlens is an FFT based evaluation of finite source effect on microlensing. See and cite Sugiyama. This method reduces the two-dimensional integration to one-dimensional fft on logarithmic space, which can be efficiently evaluated. The target quantity to be evaluated is

\[A_{\rm ext}(u; \rho) = \int{\rm d}\vec{x} A_{\rm p}(\vec{x})s(\vec{x}+\vec{u};\rho).\]

where \(s(u;\rho)\) is the source flux profile as a function of distance from source center, \(u\).

fastlens is installable from both pip and conda:

pip install fastlens

or

conda install -c ssunao fastlens

dark_emulator_public

Dark Emulator is an emulator of cosmological dark matter halo statistics. Dark Emulator is a part of the dark quest project. This is based on Nishimichi et al. This package includes the linear power spectrum (of CAMB) emulator in itself. Dark Emulator is installable from both pip and conda:

pip install pip install dark_emulator

or

conda install -c nishimichi dark_emulator