Volume 592, August 2016
|Number of page(s)||7|
|Section||Cosmology (including clusters of galaxies)|
|Published online||18 July 2016|
Probing scalar tensor theories for gravity in redshift space
1 Korea Astronomy and Space Science Institute, Yuseong-gu, 305-348 Daejeon, Korea
2 School of Physics, Korea Institute for Advanced Study, Dongdaemun-gu, 130-722 Seoul, Korea
3 Institute of theoretical astrophysics, University of Oslo, 0315 Oslo, Norway
4 Institute for Computational Cosmology, Department of Physics, Durham University, Durham DH1 3LE, UK
Received: 18 November 2015
Accepted: 20 May 2016
We present measurements of the spatial clustering statistics in redshift space of various scalar field modified gravity simulations. We utilise the two-point and three-point correlation functions to quantify the spatial distribution of dark matter halos within these simulations and thus discriminate between the models. We compare Λ cold dark matter (ΛCDM) simulations to various modified gravity scenarios and find consistency with previous work in terms of two-point statistics in real and redshift space. However, using higher-order statistics such as the three-point correlation function in redshift space we find significant deviations from ΛCDM hinting that higher-order statistics may prove to be a useful tool in the hunt for deviations from General Relativity.
Key words: cosmology: theory / gravitation / large-scale structure of Universe
© ESO, 2016
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