Stability analysis of circular geodesics in dyonic dilatonic black hole spacetimes

This research examines a non-extremal dyonic-like dilatonic charged black hole solution within a four-dimensional gravity model. The model includes two scalar (dilaton) fields and two Abelian vector fields, with interactions between them mediated by exponential terms involving two dilatonic coupling vectors. The solution is characterized by a dimensionless parameter a (where 0

Authors
Boshkayev K. , Takey G. , Ivashchuk V.D. , Malybayev A.N. , Nurbakova G.S. , Urazalina A.
Journal
Physics of the Dark Universe
Publisher
Elsevier B.V.
Language
English
Status
Published
Link
External link
DOI
10.1016/J.DARK.2025.101862
Number
101862
Volume
48
Year
2025
Organizations
  • 1 Al-Farabi Kazakh National University, Al-Farabi av. 71, Almaty, 050040, Kazakhstan
  • 2 Institute of Nuclear Physics, Ibragimova, 1, Almaty, 050032, Kazakhstan
  • 3 Center for Gravitation and Fundamental Metrology, Scientific Research Center of Applied Metrology Rostest, Ozyornaya St. 46, Moscow, 119361, Russian Federation
  • 4 Institute of Gravitation and Cosmology, Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, Moscow, 117198, Russian Federation
Keywords
Black holes; Color charges; Geodesics; Scalar fields; Stability of circular geodesics; Vector fields
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