The principle and state-of-art applications of Gravitational lensing

Abstract

Gravitational lensing, since Einstein proposed, has developed into an essential part of astronomical exploration. On this basis, lots of projects will observe high-intensity explosive transients, such as gravitational waves generated by the merging of dense binaries, so as to improve the accuracy of cosmological observation. Strong gravitational lensing is an effective observation method, which can be used to observe dark mass (sub) halos and test various dark matter models. This study takes Gravitational wave as an example, analyses the application background and mode of explosive transient, and introduces the new measurement methods for dark matter detection. The measurement of redshifted chirp mass and luminosity distance of Gravitational wave is introduced through the formula. Analysis of the characteristics of dark of the pertuber through more group detections will be helpful for new investigation method in the future. In order to make a credible judgment of the nature of the universe, more experiments need to be carried out in these two aspects. This study briefly analyses the progress in these two fields, aiming to encourage more future exploration.