Imaging the 3-D cosmological mass distribution with weak gravitational lensing

Details Imaging the 3-D cosmological mass distribution with weak gravitational lensing Imaging the 3-D cosmological mass distribution with weak gravitational lensing

2001-11-30

arxiv.org/abs/astro-ph/0111605v1

Astronomy and Astrophysics

Astrophysics

4 pages, RevTex, submitted to Phys. Rev. Lett

Scientific paper

I show how weak gravitational lensing can be used to image the 3-D mass distribution in the Universe. An inverse relation to the lensing equation, relating the lensing potential evaluated at each source to the full 3-D Newtonian potential, is derived. I consider the normal modes of the lensing problem and clarify the equations using a small-angle approximation. Finally I consider the prospects of using this method to estimate the 3-D matter distribution from a realistic galaxy lensing survey.

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