# Weak Gravitational Lensing and its Cosmological Applications

**Authors:** Henk Hoekstra, Bhuvnesh Jain  
**arXiv:** [0805.0139](https://arxiv.org/abs/0805.0139)  
**Date:** 2008-05-02  
**Summary page:** https://www.summarizepaper.com/en/arxiv-id/0805.0139v1/

## Key points

- Weak gravitational lensing is a powerful tool to explore the dark side of the universe
- Measuring distortions induced by lensing on distant galaxies provides insights into the nature of dark energy
- Conducting lensing measurements and interpretation process are discussed
- Potential systematic effects and strategies to overcome them are explored
- Recent advancements in weak lensing studies involving galaxies, galaxy clusters, and cosmic shear are discussed
- Planned surveys have great potential for measuring dark energy through weak gravitational lensing techniques
- The review serves as a valuable resource for researchers in cosmology and astrophysics.

## Summary

In their review titled "Weak Gravitational Lensing and its Cosmological Applications," authors Henk Hoekstra and Bhuvnesh Jain discuss the significance of weak gravitational lensing as a powerful tool to explore the dark side of the universe. They emphasize that measuring the distortions induced by lensing on the shapes of distant galaxies provides valuable insights into the nature of dark energy. The authors delve into the process of conducting lensing measurements and how they are interpreted, as well as potential systematic effects that can hinder progress in this field and strategies to overcome them. Furthermore, recent advancements in weak lensing studies involving galaxies, galaxy clusters, and cosmic shear are explored. Hoekstra and Jain also discuss the prospects for utilizing planned surveys to measure dark energy through leveraging weak gravitational lensing techniques. By doing so, these surveys have great potential for enhancing our understanding of this mysterious force driving the accelerated expansion of the universe. Overall, this comprehensive review provides an in-depth exploration of weak gravitational lensing as a unique probe for investigating both dark matter distribution and dark energy properties. It serves as a valuable resource for researchers working in cosmology and astrophysics seeking to leverage weak lensing measurements to unravel fundamental aspects of our universe.