Wave aberration corrections in PSF ellipticity measurements of astronomical telescopes using a multi-objective optimization
Tianxiao Xu,
Jing Luo,
Xu He
et al.
Abstract:The weak gravitational lensing (WGL) produces a shear effect on the observed galactic
ellipticity that is much smaller than the endogenous ellipticity of
the galaxy itself. Achieving such a high-level astronomical
observation requires the superior performance of telescopes. To ensure
the optical properties of telescopes to be competent in WGL
detections, it is very necessary to measure point spread function
(PSF) ellipticity of telescopes in labs. In this paper, a 2 m
off-axi… Show more
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