Gravitation field perturbation quasinormal modes of a black hole in F(R) gravity

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Malekmakan K., Saffari R., Soroushfar S., Pourhassan B.

EUROPEAN PHYSICAL JOURNAL PLUS, vol.137, no.11, 2022 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 137 Issue: 11
• Publication Date: 2022
• Doi Number: 10.1140/epjp/s13360-022-03441-9
• Journal Name: EUROPEAN PHYSICAL JOURNAL PLUS
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC
• Istanbul Technical University Affiliated: No

Abstract

The direct and historical observation of gravity resulting from the merger of black holes by LIGO has opened a whole new window on the universe, allowing us to experiment with gravity and strong gravitational fields. As a result, the tendency to discuss the problems and complex quasinormal modes of black holes has recently increased. In this paper, we consider a black hole in F(R) gravity. We will study the perturbation equation and effective potential using the Regge-Wheeler gauge. The fundamental characteristic quasinormal modes of this black hole have been calculated for gravitational field perturbation by using the sixth-order WKB approximation approach.