# Cosmic Shear with Einstein Rings

@article{Birrer2018CosmicSW, title={Cosmic Shear with Einstein Rings}, author={Simon Birrer and Alexandre R{\'e}fr{\'e}gier and Adam Amara}, journal={The Astrophysical Journal Letters}, year={2018}, volume={852} }

We explore a new technique to measure cosmic shear using Einstein rings. In Birrer et al., we showed that the detailed modeling of Einstein rings can be used to measure external shear to high precision. In this Letter, we explore how a collection of Einstein rings can be used as a statistical probe of cosmic shear. We present a forecast of the cosmic shear information available in Einstein rings for different strong lensing survey configurations. We find that, assuming that the number density…

## 11 Citations

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This work incorporates BNNs with flexible posterior parameterizations into a hierarchical inference framework that allows for the reconstruction of population hyperparameters and removes the bias introduced by the training distribution.

## References

SHOWING 1-10 OF 39 REFERENCES

Weak Gravitational Lensing and Its Cosmological Applications

- Physics
- 2008

Weak gravitational lensing is a unique probe of the dark side of the universe: It provides a direct way to map the distribution of dark matter around galaxies and clusters of galaxies as well as on…

External Shear in Quadruply Imaged Lens Systems

- Physics
- 2003

We use publicly available N-body simulations and semianalytic models of galaxy formation to estimate the levels of external shear due to structure near the lens in gravitational lens systems. We also…

Seeing in the dark – II. Cosmic shear in the Sloan Digital Sky Survey

- Physics
- 2011

Statistical weak lensing by large-scale structure – cosmic shear – is a promising cosmological tool, which has motivated the design of several large upcoming surveys. Here, we present a measurement…

THE SDSS CO-ADD: COSMIC SHEAR MEASUREMENT

- Physics
- 2012

Stripe 82 in the Sloan Digital Sky Survey was observed multiple times, allowing deeper images to be constructed by co-adding the data. Here, we analyze the ellipticities of background galaxies in…

Cosmology with weak lensing surveys.

- PhysicsPhilosophical transactions. Series A, Mathematical, physical, and engineering sciences
- 2005

Cosmic shear measurements with Dark Energy Survey science verification data

- Physics
- 2015

We present measurements of weak gravitational lensing cosmic shear two-point statistics using Dark Energy Survey Science Verification data. We demonstrate that our results are robust to the choice of…

Weak gravitational lensing of distant galaxies

- Physics
- 1992

We analyze the two-point statistics of the gravitationally induced ellipticities of distant images whick provide a direct probe of the mass fluctuation spectrum P(k). The analysis extends previous…

Detection of weak gravitational lensing distortions of distant galaxies by cosmic dark matter at large scales

- PhysicsNature
- 2000

The detection of cosmic shear on angular scales of up to half a degree is reported using 145,000 galaxies and along three separate lines of sight and it is found that the dark matter is distributed in a manner consistent with either an open universe, or a flat universe that is dominated by a cosmological constant.

Detection of weak gravitational lensing by large-scale structure

- Physics
- 2000

We report a detection of the coherent distortion of faint galaxies arising from gravitational lensing by foreground structures. This ‘cosmic shear’ is potentially the most direct measure of the mass…

Weak gravitational lensing

- PhysicsScholarpedia
- 2017

This brief review of the advances made in weak gravitational lensing over the last 8 years, concentrating on the large scales cosmic shear, considers the prospects for probing Dark Energy and extra-dimensional gravity theories with future experiments.