Journal
PHYSICAL REVIEW D
Volume 91, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.91.083504
Keywords
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Funding
- Rhodes Trust
- All Souls College, University of Oxford
- STFC
- BIPAC
- Higgs visiting fellowship
- Oxford Martin School
- Science and Technology Facilities Council [ST/K00106X/1] Funding Source: researchfish
- STFC [ST/K00106X/1] Funding Source: UKRI
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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 advantage of this to explore the degeneracies between gravitational parameters in weak lensing observations.
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