• Corpus ID: 237373870

New highly precise weak gravitational lensing flexions measurement method based on ERA method

@inproceedings{Okura2021NewHP,
  title={New highly precise weak gravitational lensing flexions measurement method based on ERA method},
  author={Yuki Okura and Toshifumi Futamase},
  year={2021}
}
Weak gravitational lensing flexions are a kind of weak lensing distortion which are defined as the spin 1 and spin 3 combinations of the third order derivatives of gravitational lensing potential. Since the shear has spin 2 combination of the second order derivative, the flexion signal gives partly independent information from shear signal and is more sensitive to the local mass distribution than shear signal. Thus its measurement is expected to play important roles in observational cosmology… 

References

SHOWING 1-2 OF 2 REFERENCES
Part 1: Introduction to gravitational lensing and cosmology
Same plot as figure 15 except that the red points are the average value of eigen second flexion combination
  • 2005