Searching for Constraints on Starobinsky’s Model with a Disappearing Cosmological Constant on Galaxy Cluster Scales
- Авторы: Alexeyev S.O.1, Latosh B.N.2,3, Echeistov V.A.4
-
Учреждения:
- Sternberg Astronomical Institute
- Bogoliubov Laboratory of Theoretical Physics
- Dubna State University
- Faculty of Physics
- Выпуск: Том 125, № 6 (2017)
- Страницы: 1083-1089
- Раздел: Nuclei, Particles, Fields, Gravitation, and Astrophysics
- URL: https://journals.rcsi.science/1063-7761/article/view/191664
- DOI: https://doi.org/10.1134/S1063776117120111
- ID: 191664
Цитировать
Аннотация
Predictions of the f(R)-gravity model with a disappearing cosmological constant (Starobinsky’s model) on scales characteristic of galaxies and their clusters are considered. The absence of a difference in the mass dependence of the turnaround radius between Starobinsky’s model and General Relativity accessible to observation at the current accuracy of measurements has been established. This is true both for small masses (from 109MSun) corresponding to an individual galaxy and for masses corresponding to large galaxy clusters (up to 1015MSun). The turnaround radius increases with parameter n for all masses. Despite the fact that some models give a considerably smaller turnaround radius than does General Relativity, none of the models goes beyond the bounds specified by the observational data.
Об авторах
S. Alexeyev
Sternberg Astronomical Institute
Автор, ответственный за переписку.
Email: alexeyev@sai.msu.ru
Россия, Universitetskii pr. 13, Moscow, 119992
B. Latosh
Bogoliubov Laboratory of Theoretical Physics; Dubna State University
Email: alexeyev@sai.msu.ru
Россия, Dubna, Moscow oblast, 141980; Dubna, Moscow oblast, 141980
V. Echeistov
Faculty of Physics
Email: alexeyev@sai.msu.ru
Россия, Moscow, 119991
Дополнительные файлы
