Massive scalar field quasinormal frequencies in black hole with a deficit solid angle

Massive scalar field quasinormal modes of black hole with a deficit solid angle are studied by using the third-order WKB approximation. From the numerical results obtained, we find that scalar field with higher mass u will oscillate more quickly but decay more slowly, while with larger deficit solid angle ε will oscillate and decay more slowly. Moreover, the imaginary parts of quasinormal frequencies are almost linearly related to the real parts with u and ε.