Quasinormal modes and greybody factors of de Sitter black holes surrounded by quintessence in Rastall gravity

DJ Gogoi, N Heidari, J K̆rí̆z… - Fortschritte der …, 2024 - Wiley Online Library
In this work, the quasinormal mode, greybody factors, and absorption cross section of de
Sitter Reissner‐Nordström black hole surrounded by quintessence field in Rastall gravity are …

Impact of Tolman–Kuchowicz solution on dark energy compact stars in f (R) theory

M Aslam, A Malik - Annals of Physics, 2025 - Elsevier
In this study, we model a new relativistic dark energy star by enforcing a static and isotropic
spherically symmetric fluid distribution within the framework of f (R) gravity, utilizing the …