Optics ellipticity performance of an unobscured off-axis space telescope.

@article{Zeng2014OpticsEP,
  title={Optics ellipticity performance of an unobscured off-axis space telescope.},
  author={Fei Zeng and Xin Zhang and Jianping Zhang and Guangwei Shi and Hongbo Wu},
  journal={Optics express},
  year={2014},
  volume={22 21},
  pages={25277-85}
}
With the development of astronomy, more and more attention is paid to the survey of dark matter. Dark matter cannot be seen directly but can be detected by weak gravitational lensing measurement. Ellipticity is an important parameter used to define the shape of a galaxy. Galaxy ellipticity changes with weak gravitational lensing and nonideal optics. With… CONTINUE READING