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Astrophysics Source Code Library

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Searching for codes credited to 'Flöss, Thomas'

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[ascl:2403.013] URecon: Reconstruct initial conditions of N-Body simulations

URecon reconstructs the initial conditions of N-body simulations from late time (e.g., z=0) density fields. This simple UNET architecture is implemented in TensorFlow and requires Pylians3 (ascl:2403.012) for measuring power spectrum of density fields. The package includes weights trained on Quijote fiducial cosmology simulations.

[ascl:2403.016] DensityFieldTools: Manipulating density fields and measuring power spectra and bispectra

The DensityFieldTools toolset manipulates density fields and measures power spectra and bispectra using a very simple interface. After loading a density field, it computes the power spectrum and the bispectrum for a desired binning. The bispectrum estimator also automatically computes the power spectrum for the chosen binning, to facilitate, for example, shot-noise subtraction. DensityFieldTools also provides a quick way to measure (cross-)power spectra directly from density fields.

[submitted] BFast

A fast GPU-based bispectrum estimator implemented using JAX.