Accurate halo model matter power spectra with dark energy, massive neutrinos and modified gravitational forces
We present an accurate non linear matter power spectrum prediction scheme for a variety of extensions to the standard cosmological paradigm, which uses the tuned halo model previously developed in Mead et al. We consider dark energy models that are both minimally and non minimally coupled, massive neutrinos and modified gravitational forces with chameleon and Vainshtein screening mechanisms. In all cases we compare halo model power spectra to measurements from high resolution simulations. We show that the tuned halo model method can predict the non linear matter power spectrum measured from simulations of parameterized w(a) dark energy models at the few per cent level for k 0:5hMpc 1 An updated version of our publicly available HMCODE can be found at https:/github.com/alexander mead/hmcode.