Observational constraint on a generalized Galileon gravity model from the gas and shear profiles of a cluster of galaxies

Ayumu Terukina, Kazuhiro Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

I have discussed testing gravity theory using cluster's observations of the gas and shear profiles simultaneously. The gas distributions depend on the gravitational potential, while the shear profile depends on the lens potential, which are complimentary to put a constraint. • Using the observations of the gas and shear profiles of the Coma cluster, I put a constraint on the generalized Galileon model. (µG, µL) • 2 parameters are constrained at the same time. The constraint on the original Galileon model is marginal.

Original languageEnglish
Title of host publicationJGRG 2014 - Proceedings of the 24th Workshop on General Relativity and Gravitation in Japan
PublisherUniversity of Tokyo, Kavli Institute for Physics and Mathematics of the Universe, KIPMU
Pages449-456
Number of pages8
ISBN (Electronic)9780000000002
Publication statusPublished - 2014
Externally publishedYes
Event24rd Workshop on General Relativity and Gravitation in Japan, JGRG 2014 - Chiba, Japan
Duration: Nov 10 2014Nov 14 2014

Publication series

NameJGRG 2014 - Proceedings of the 24th Workshop on General Relativity and Gravitation in Japan
Volume3

Conference

Conference24rd Workshop on General Relativity and Gravitation in Japan, JGRG 2014
CountryJapan
CityChiba
Period11/10/1411/14/14

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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