| Autor: |
Wilcox, Harry, Bacon, David, Nichol, Robert C., Rooney, Philip J., Terukina, Ayumu, Romer, A. Kathy, Koyama, Kazuya, Zhao, Gong-Bo, Hood, Ross, Mann, Robert G., Hilton, Matt, Manolopoulou, Maria, Sahlen, Martin, Collins, Chris A., Liddle, Andrew R., Mayers, Julian A., Mehrtens, Nicola, Miller, Christopher J., Stott, John P., Viana, Pedro T. P. |
| Rok vydání: |
2015 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1093/mnras/stv1366 |
| Popis: |
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 ($0.1Comment: 14 pages, 7 figures |
| Databáze: |
arXiv |
| Externí odkaz: |
|
