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Degeneracies in parametrized modified gravity models

We study degeneracies between parameters in some of the widely used parametrized modified gravity models. We investigate how different observables from a future photometric weak lensing survey such as LSST, correlate the effects of these parameters and to what extent the degeneracies are broken. We also study the impact of other degenerate effects, namely massive neutrinos and some of the weak lensing systematics, on the correlations.

preprint2012arXivOpen access
Alireza Hojjati
astro-ph.COgr-qc
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Alireza Hojjati

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