Constraining f(R) Gravity Theory Using Weak Lensing Peak Statistics from the Canada-France-Hawaii-Telescope Lensing Survey

Liu, Xiangkun; Li, Baojiu; Zhao, Gongbo; Chiu, Mu-Chen; Fang, Wei; Pan, Chuzhong; Wang, Qiao; Du, Wei; Yuan, Shuo; Fu, Liping; Fan, Zuhui

Abstract

In this Letter, we report the observational constraints on the Hu-Sawicki f(R) theory derived from weak lensing peak abundances, which are closely related to the mass function of massive halos. In comparison with studies using optical or x-ray clusters of galaxies, weak lensing peak analyses have the advantages of not relying on mass-baryonic observable calibrations. With observations from the Canada-France-Hawaii-Telescope Lensing Survey, our peak analyses give rise to a tight constraint on the model parameter |fR0| for n=1. The 95% C.L. is log10|fR0|<−4.82 given WMAP9 priors on (Ωm, As). With Planck15 priors, the corresponding result is log10|fR0|<−5.16.

Citation

Liu, X., Li, B., Zhao, G., Chiu, M., Fang, W., Pan, C., …Fan, Z. (2016). Constraining f(R) Gravity Theory Using Weak Lensing Peak Statistics from the Canada-France-Hawaii-Telescope Lensing Survey. Physical Review Letters, 117(5), Article 051101. https://doi.org/10.1103/physrevlett.117.051101

• Journal Article Type: Article
• Acceptance Date: Jun 29, 2016
• Online Publication Date: Jul 27, 2016
• Publication Date: Jul 27, 2016
• Deposit Date: Aug 21, 2016
• Publicly Available Date: Aug 22, 2016
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 117
• Issue: 5
• Article Number: 051101
• DOI: https://doi.org/10.1103/physrevlett.117.051101
• Related Public URLs: http://arxiv.org/abs/1607.00184