This library was developed with 2 goals: support the Asterism Selection for MAVIS instrument (https://mavis-ao.org/) and managing the computation of the jitter (i.e. tip/tilt) error in Adaptive Optics simulations done in the Fourier domain. It is used by TIPTOP (https://github.com/astro-tiptop/TIPTOP).
The main features are located in:
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mastsel/mavisLO.pyclass that computes the jitter ellipses that can be -
convolved with High Orders (HO, i.e. aberrations of higher spatial
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frequencies than tip/tilt) Point Spread Functions (PSF) to get the PSFs that
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consider both the effect of HO and Low Orders (LO, i.e. tip/tilt).
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mastsel/mavisPsf.pythat contains a set of methods and classes to compute -
short and long exposure PSF from Power Spectral Densities (PSD), Strehl
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Ratios, radial profiles, encircled energies (and other quantities) from PSF,
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to convolve kernels with PSFs, …
Reference: section 5 “LOW ORDER PART OF THE PSF” of Benoit et al. "TIPTOP: a new tool to efficiently predict your favorite AO PSF" SPIE 2020 (ARXIV: https://doi.org/10.48550/arXiv.2101.06486).