Abstract:Basic properties of gravitational lensing could help scientists in detecting the structure of the universe. For instance, the non-luminous dark matter, cannot detected by normal astronomical telescope. The large population low-mass halo which is the cosmological mode of cold dark matter, CDM, locating along the line-of-sight will perturb the strong lensing. In that way, alternation of dark matter from CDM to WDM will be detected by analysis the halo perturbed image. The main proposes of this review is to intro… Show more
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