Integrated Sachs-Wolfe-galaxy cross-correlation bounds on the two branches of the minimal theory of massive gravity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00520324" target="_blank" >RIV/68378271:_____/18:00520324 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/physrevd.98.024010" target="_blank" >https://doi.org/10.1103/physrevd.98.024010</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.98.024010" target="_blank" >10.1103/PhysRevD.98.024010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Integrated Sachs-Wolfe-galaxy cross-correlation bounds on the two branches of the minimal theory of massive gravity

Popis výsledku v původním jazyce

The minimal theory of massive gravity (MTMG) has two branches of stable cosmological solutions: a self-accelerating branch, which, except for the mass of tensor modes, has exactly the same behavior of linear perturbations as ΛCDM in general relativity (GR), and a normal branch with nontrivial behavior. We explore the influence of the integrated Sachs-Wolfe-galaxy correlation constraints on the normal branch of MTMG, which, in its simplest implementation, has one free parameter more than ΛCDM in GR (or the self-accelerating branch of MTMG): θ. This parameter is related to the graviton mass and only affects the behavior of the cosmological linear perturbation dynamics. Using 2d-mass and SDSS data, we check which values of θ lead to a positive or negative cross-correlation. We find that positive cross-correlation is achieved for a large parameter-space interval.

Název v anglickém jazyce

Integrated Sachs-Wolfe-galaxy cross-correlation bounds on the two branches of the minimal theory of massive gravity

Popis výsledku anglicky

The minimal theory of massive gravity (MTMG) has two branches of stable cosmological solutions: a self-accelerating branch, which, except for the mass of tensor modes, has exactly the same behavior of linear perturbations as ΛCDM in general relativity (GR), and a normal branch with nontrivial behavior. We explore the influence of the integrated Sachs-Wolfe-galaxy correlation constraints on the normal branch of MTMG, which, in its simplest implementation, has one free parameter more than ΛCDM in GR (or the self-accelerating branch of MTMG): θ. This parameter is related to the graviton mass and only affects the behavior of the cosmological linear perturbation dynamics. Using 2d-mass and SDSS data, we check which values of θ lead to a positive or negative cross-correlation. We find that positive cross-correlation is achieved for a large parameter-space interval.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

—

Svazek periodika

98

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

000437743200006

EID výsledku v databázi Scopus

2-s2.0-85051128444