Dark energy in the most general scalar-tensor theories and their observational constraints

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

Abstract

In the Horndeski' most general scalar-tensor theories the background and perturbation equations are derived on the flat Friedmann-Lemaitre-Robertson- Walker background. We then discriminate between theoretical models of dark energy from recent observations. We place bounds on dark energy models from the distance measurement data of supernovae Ia, cosmic microwave background, and baryon acoustic oscillations. We also show that the recent measurement of the peculiar velocity of galaxies is powerful to constrain modified gravity models.

Original languageEnglish
Title of host publicationMultiverse and Fundamental Cosmology, Multicosmofun 2012
Pages118-127
Number of pages10
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventConference on Multiverse and Fundamental Cosmology, Multicosmofun 2012 - Szczecin, Poland
Duration: 2012 Sep 102012 Sep 14

Publication series

NameAIP Conference Proceedings
Volume1514
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceConference on Multiverse and Fundamental Cosmology, Multicosmofun 2012
CountryPoland
CitySzczecin
Period12/9/1012/9/14

Keywords

  • Dark energy
  • modified gravity
  • quintessence

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Tsujikawa, S. (2013). Dark energy in the most general scalar-tensor theories and their observational constraints. In Multiverse and Fundamental Cosmology, Multicosmofun 2012 (pp. 118-127). (AIP Conference Proceedings; Vol. 1514). https://doi.org/10.1063/1.4791738