# Counting voids to probe dark energy

@article{Pisani2015CountingVT,
title={Counting voids to probe dark energy},
author={Alice Pisani and Paul Sutter and Nico Hamaus and Esfandiar Alizadeh and Rahul Biswas and Benjamin D. Wandelt and Christopher M. Hirata},
journal={Physical Review D},
year={2015},
volume={92},
pages={083531}
}
• Published 26 March 2015
• Physics
• Physical Review D
We show that the number of observed voids in galaxy redshift surveys is a sensitive function of the equation of state of dark energy. Using the Fisher matrix formalism we find the error ellipses in the $w_0-w_a$ plane when the equation of state of dark energy is assumed to be of the form $w_{CPL}(z)=w_0 +w_a z/(1+z)$. We forecast the number of voids to be observed with the ESA Euclid satellite and the NASA WFIRST mission, taking into account updated details of the surveys to reach accurate…

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## References

SHOWING 1-10 OF 31 REFERENCES

### ou rnal of Cosmology and Astroparticle Physics

• Physics
• 2014
Inflation models make specific predictions for a tensor-scalar-scalar three-point correlation, or bispectrum, between one gravitational-wave (tensor) mode and two density- perturbation (scalar)

### 2HOT: An improved parallel hashed oct-tree N-Body algorithm for cosmological simulation

• Michael S. Warren
• Physics
2013 SC - International Conference for High Performance Computing, Networking, Storage and Analysis (SC)
• 2013
These results include the first simulations using the new constraints on the standard model of cosmology from the Planck satellite and set a new standard for accuracy and scientific throughput, while meeting or exceeding the computational efficiency of the latest generation of hybrid TreePM N-body methods.

### Monthly Notices of the Royal Astronomical Society

• Physics
• 2003
A reduced size ion source for on-line use with a cyclotron heavy-ion beam is provided. A sixfold reduction in source volume while operating with similar input power levels results in a 2000 DEG C.

### MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

Monthly Notices is one of the three largest general primary astronomical research publications and this article 1 describes its publication policy and practice.

• 023002
• 2010

• J. 754, 109
• 2012

• 2008

### and G

• e. a. Goldhaber, Astrophys. J. 517, 565
• 1999