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Exploring degeneracies in modified gravity with weak lensing

Abstract:

By considering linear-order departures from general relativity, we compute a novel expression for the weak lensing convergence power spectrum under alternative theories of gravity. This comprises an integral over a 'kernel' of general relativistic quantities multiplied by a theory-dependent 'source' term. The clear separation between theory-independent and -dependent terms allows for an explicit understanding of each physical effect introduced by altering the theory of gravity. We take advant...

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Publication date:
2015-01-14
URN:
uuid:035f587d-8078-459c-a7d9-870337f0b510
Source identifiers:
503510
Local pid:
pubs:503510
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