Imaging the 3-D cosmological mass distribution with weak gravitational lensing
Abstract
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.
- Publication:
-
arXiv e-prints
- Pub Date:
- November 2001
- DOI:
- 10.48550/arXiv.astro-ph/0111605
- arXiv:
- arXiv:astro-ph/0111605
- Bibcode:
- 2001astro.ph.11605T
- Keywords:
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- Astrophysics
- E-Print:
- 4 pages, RevTex, submitted to Phys. Rev. Lett