Massive Scalar Field Quasinormal Modes Research Articles

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 e will oscillate and decay more slowly. Moreover, the imaginary parts of quasinormal frequencies are almost linearly related to the real parts with u and e.

Massive scalar field quasinormal modes of a black hole in the deformed Hořava-Lifshitz gravity

Abstract We calculated the quasinormalmodes ofmassive scalar field of a black hole in the deformed Hořava-Lifshitz gravity with coupling constant λ = 1, using the third-order WKB approximation. Our results show that when the scalar field mass increases, the oscillation frequency increases while the damping decreases. And we find that the imaginary parts are almost linearly related to the real parts, the behaviors are very similar to that in the Reissner-Nordström black hole spacetime. These information will help us understand more about the Hořava-Lifshitz gravity.

Massive scalar field quasinormal modes of a Schwarzschild black hole surrounded by quintessence

Abstract We present the quasinormal frequencies of the massive scalar field in the background of a Schwarzchild black hole surrounded by quintessence with the third-order WKB method. The mass of the scalar field u plays an important role in studying the quasinormal frequencies, the real part of the frequencies increases linearly as mass of the field u increases, while the imaginary part in absolute value decreases linearly which leads to damping more slowly than the massless scalar field. The frequencies have a limited value, so it is easier to detect the quasinormal modes. Moreover, owing to the presence of the quintessence, the massive scalar field damps more slowly.

Massive scalar field quasinormal modes of higher dimensional black holes

We study quasinormal spectrum of massive scalar field in the $D$-dimensional black hole background. We found the qualitatively different dependence on the field mass of the fundamental modes for $D\geq6$. The behaviour of higher modes is qualitatively the same for all $D$. Thus for some particular values of mass (of the field and of the black hole) the spectrum has two dominating oscillations with a very long lifetime. Also we show that the asymptotically high overtones do not depend on the field mass. In addition, we present the generalisation of the Nollert improvement of the continued fraction technique for the numerical calculation of quasi-normal frequencies of $D$-dimensional black holes.