Obtaining precision constraints on modified gravity with helioseismology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00522496" target="_blank" >RIV/68378271:_____/19:00522496 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/physrevlett.123.091103" target="_blank" >https://doi.org/10.1103/physrevlett.123.091103</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.123.091103" target="_blank" >10.1103/PhysRevLett.123.091103</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Obtaining precision constraints on modified gravity with helioseismology

Popis výsledku v původním jazyce

We propose helioseismology as a new, precision probe of fifth forces at astrophysical scales, and apply it on the most general scalar-tensor theories for dark energy, known as degenerate higher-order scalar-tensor theories. We explain how the effect of the fifth force on the solar interior leaves an observable imprint on the acoustic oscillations, and under certain assumptions we numerically compute the nonradial pulsation eigenfrequencies within modified gravity. We illustrate its constraining power by showing that helioseismic observations have the potential to improve constraints on the strength of the fifth force by more than 2 orders of magnitude, as −1.8 × 10-3 ≤ Y ≤ 1.2 × 10-3 (at 2σ). This in turn would suggest constraints of similar order for the theory’s free functions around a cosmological background (αH, β1).

Název v anglickém jazyce

Obtaining precision constraints on modified gravity with helioseismology

Popis výsledku anglicky

We propose helioseismology as a new, precision probe of fifth forces at astrophysical scales, and apply it on the most general scalar-tensor theories for dark energy, known as degenerate higher-order scalar-tensor theories. We explain how the effect of the fifth force on the solar interior leaves an observable imprint on the acoustic oscillations, and under certain assumptions we numerically compute the nonradial pulsation eigenfrequencies within modified gravity. We illustrate its constraining power by showing that helioseismic observations have the potential to improve constraints on the strength of the fifth force by more than 2 orders of magnitude, as −1.8 × 10-3 ≤ Y ≤ 1.2 × 10-3 (at 2σ). This in turn would suggest constraints of similar order for the theory’s free functions around a cosmological background (αH, β1).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/EF15_003%2F0000437" target="_blank" >EF15_003/0000437: Kosmologie, gravitace a temný sektor vesmíru</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

—

Svazek periodika

123

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

000483353900006

EID výsledku v databázi Scopus

2-s2.0-85072081408