Consistent modified gravity analysis of anisotropic galaxy clustering using BOSS DR11

Yong-Seon Song, Atsushi Taruya, Eric Linder, Kazuya Koyama, Cristiano G. Sabiu, Gong-Bo Zhao, Francis Bernardeau, Takahiro Nishimichi, Teppei Okumura

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Abstract

We analyse the clustering of cosmic large scale structure using a consistent modied gravity perturbation theory, accounting for anisotropic effects along and transverse to the line of sight. The growth factor has a particular scale dependence in f(R) gravity and we fit for the shape parameter fR0 simultaneously with the distance and the large scale (general relativity) limit of the growth function. Using more than 690,000 galaxies in the Baryon Oscillation Spectroscopy Survey Data Release 11, we nd no evidence for extra scale dependence, with the 95% condence upper limit IfR0I < 8 10-4. Future clustering data, such as from the Dark Energy Spectroscopic Instrument, can use this consistent methodology to impose tighter constraints.
Original languageEnglish
Article number043552
Pages (from-to)043522
JournalPhysical Review D
Volume92
Issue number4
DOIs
Publication statusPublished - 27 Aug 2015

Keywords

  • RCUK
  • STFC

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