Abstract / Description of output
The chameleon gravity model postulates the existence of a scalar field that couples with matter to mediate a fifth force. If it exists, this fifth force would influence the hot X-ray emitting gas filling the potential wells of galaxy clusters. However, it would not influence the clusters' weak lensing signal. Therefore, by comparing X-ray and weak lensing profiles, one can place upper limits on the strength of a fifth force. This technique has been attempted before using a single, nearby cluster (Coma, $z=0.02$). Here we apply the technique to the stacked profiles of 58 clusters at higher redshifts ($0.1z
Original language | English |
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Pages (from-to) | 1171-1183 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 452 |
Issue number | 2 |
Early online date | 14 Jul 2015 |
DOIs | |
Publication status | Published - 11 Sept 2015 |
Keywords / Materials (for Non-textual outputs)
- astro-ph.CO