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

Shinji Tsujikawa

doi:10.1063/1.4791738

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

Shinji Tsujikawa^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

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 language	English
Title of host publication	Multiverse and Fundamental Cosmology, Multicosmofun 2012
Pages	118-127
Number of pages	10
DOIs	https://doi.org/10.1063/1.4791738
Publication status	Published - 2013
Externally published	Yes
Event	Conference on Multiverse and Fundamental Cosmology, Multicosmofun 2012 - Szczecin, Poland Duration: 2012 Sept 10 → 2012 Sept 14

Publication series

Name	AIP Conference Proceedings
Volume	1514
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	Conference on Multiverse and Fundamental Cosmology, Multicosmofun 2012
Country/Territory	Poland
City	Szczecin
Period	12/9/10 → 12/9/14

Keywords

Dark energy
modified gravity
quintessence

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.4791738

Cite this

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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.",

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AB - 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.

KW - Dark energy

KW - modified gravity

KW - quintessence

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BT - Multiverse and Fundamental Cosmology, Multicosmofun 2012

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ER -

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

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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