scholarly journals Massive Vector Fields in Rotating Black-Hole Spacetimes: Separability and Quasinormal Modes

2018 ◽  
Vol 120 (23) ◽  
Author(s):  
Valeri P. Frolov ◽  
Pavel Krtouš ◽  
David Kubizňák ◽  
Jorge E. Santos
Keyword(s):  
Black Hole ◽  
Vector Fields ◽  
Quasinormal Modes ◽  
Massive Vector ◽  
Rotating Black Hole ◽  
Black Hole Spacetimes

scholarly journals Massive vector fields in Kerr-Newman and Kerr-Sen black hole spacetimes

2020 ◽  
Vol 2020 (4) ◽  
Author(s):  
Ramiro Cayuso ◽  
Oscar J.C. Dias ◽  
Finnian Gray ◽  
David Kubizňák ◽  
Aoibheann Margalit ◽  
...  
Keyword(s):  
Black Hole ◽  
Vector Fields ◽  
Massive Vector ◽  
Black Hole Spacetimes

scholarly journals Master equations and quasinormal modes of spin- 3/2 fields in Schwarzschild (A)dS black hole spacetimes

2019 ◽  
Vol 100 (10) ◽  
Author(s):  
Chun-Hung Chen ◽  
Hing-Tong Cho ◽  
Alan S. Cornell ◽  
Gerhard E. Harmsen
Keyword(s):  
Black Hole ◽  
Quasinormal Modes ◽  
Master Equations ◽  
Black Hole Spacetimes

scholarly journals QUASINORMAL MODES OF RN BLACK HOLE SPACETIME WITH COSMIC STRING IN A DIRAC FIELD

2009 ◽  
Vol 24 (25) ◽  
pp. 2025-2037 ◽  
Author(s):  
R. SINI ◽  
V. C. KURIAKOSE
Keyword(s):  
Black Hole ◽  
Cosmic String ◽  
Quasinormal Modes ◽  
Potential Method ◽  
Dirac Field ◽  
Black Hole Spacetimes ◽  
Black Hole Spacetime ◽  
Field Decay ◽  
Positively Charged ◽  
Small Charge

We evaluate quasinormal mode frequencies for RN black hole spacetimes with cosmic string perturbed by a massless Dirac field, using Pöschl–Teller potential method. We find that only in the case of RN black hole having small charge, the effect due to cosmic string will dominate when perturbed by a negatively charged Dirac field, but if we are perturbing with positively charged Dirac field decay will be less in the case of black hole having cosmic string compared to the RN black hole without string.

EFFECT OF COSMIC STRING IN SPHERICALLY SYMMETRIC BLACK HOLE ON THE DIRAC PERTURBATION

2010 ◽  
Vol 25 (02) ◽  
pp. 111-124 ◽  
Author(s):  
R. SINI ◽  
NIJO VARGHESE ◽  
V. C. KURIAKOSE
Keyword(s):  
Black Hole ◽  
Cosmic String ◽  
Oscillation Frequency ◽  
Quasinormal Modes ◽  
Dirac Field ◽  
Spherically Symmetric ◽  
Black Hole Spacetimes ◽  
Quasi Normal Mode ◽  
Symmetric Black Hole ◽  
Sds Black Hole

The effect of cosmic string on the quasinormal modes (QNMs) of massless Dirac field perturbations were studied in different black hole spacetimes. Quasi-normal mode frequencies of massless Dirac field in Schwarzschild, RN extremal, SdS and near extremal SdS black hole spacetimes with cosmic string are obtained using WKB approximation. Our study shows a clear deviation in QNMs due to presence of cosmic string from those in the absence of string. The influence of cosmic string coded in the form of an increase in the oscillation frequency and damping time of QNMs.

Sign in / Sign up

Export Citation Format

Share Document