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Even-parity black hole perturbations in Minimal Theory of Bigravity
Masato Minamitsuji, Shinji Mukohyama, Michele Oliosi
We study even-parity black hole perturbations in Minimal Theory of Bigravity (MTBG). We consider the Schwarzschild solution written in the spatially-flat coordinates in the self-ac…
Angular and radial stabilities of spontaneously scalarized black holes in the presence of scalar-Gauss-Bonnet couplings
Masato Minamitsuji, Shinji Mukohyama, Shinji Tsujikawa
We study the linear stability of spontaneously scalarized black holes (BHs) induced by a scalar field coupled to a Gauss-Bonnet (GB) invariant . For the scalar-GB…
Black hole thermodynamics in generalized Proca theories
Masato Minamitsuji, Kei-ichi Maeda
We investigate thermodynamics of static and spherically symmetric black holes (BHs) in generalized Proca (GP) theories by applying the Iyer-Wald prescription. BH solutions in GP th…