13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

Tensions Between CMB and Weak Lensing Data Sets when Testing General Relativity

15 Dec 2015, 14:26
27m
Level 2, Room 14 (International Conference Centre Geneva)

Level 2, Room 14

International Conference Centre Geneva

17 Rue de Varembé, 1211 Geneva

Speaker

Jason Dossett (INAF - Osservatorio Astronomico di Brera)

Description

There has been quite a bit of recent discussion about tension between CMB and weak lensing data sets, especially in the context of testing general relativity using modified growth parameters. We use a combination of cosmological data sets, including the CMB temperature anisotropy data from Planck, weak lensing tomography from CFHTLenS, and the WiggleZ galaxy power spectrum to place constraints on modified growth parameters. A likelihood analysis is performed using the publicly available package ISiTGR. We explore what tensions, if any, are present between the CMB and weak-lensing data when using three different parameterizations for the modified growth parameters.

Primary author

Jason Dossett (INAF - Osservatorio Astronomico di Brera)

Co-authors

David Parkinson (University of Queensland) Mustapha Ishak (The University of Texas at Dallas) Tamara Davis (University of Queensland)

Presentation Materials