# Constraining dark sector perturbations I: cosmic shear and CMB lensing

@inproceedings{Battye2015ConstrainingDS, title={Constraining dark sector perturbations I: cosmic shear and CMB lensing}, author={Richard A. Battye and Adam Moss and Jonathan A. Pearson}, year={2015} }

We present current and future constraints on equations of state for dark sector perturbations. The equations of state considered are those corresponding to a generalized scalar field model and time-diffeomorphism invariant (g) theories that are equivalent to models of a relativistic elastic medium and also Lorentz violating massive gravity. We develop a theoretical understanding of the observable impact of these models. In order to constrain these models we use CMB temperature data from Planck… CONTINUE READING

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