black holesgeneral relativitygeometry/ geometryKerr-Newman ergosurfaceGaussian curvatureblack holeangular momentumelectric chargepolar cupsThe sign of the Gaussian curvature of the ergosurface of a Kerr-Newman black hole depends on the amounts of the angular momentum and electric charge of the black ...
That is, the lower limit for the ergoregion of a Kerr–Newman-NUT black hole with l = a is the upper limit for the ergoregion of a Kerr black hole. 3 Trajectory of massive and massless particles Understanding the geometry of any spacetime requires a thorough analysis of the trajectory of...
Cutler, Using LISA EMRI sources to test off-Kerr deviations in the geometry of massive black holes. Phys. Rev. D 75, 042003 (2007)Barack, L. & Cutler, C. (2007). Using LISA EMRI sources to test off-Kerr deviations in the geometry of massive black holes. Phys.Rev., D75, 042003....
In general, we cannot put a constraint on possible deviations from the Kerr geometry, but only on some combination between these deviations and the spin. The measurement of the radio power of transient jets in black hole binaries can potentially break this degeneracy, thus allowing for testing ...
Black Holes, Global Monopole Charge and Quasi-Local Energy Naresh Dadhich Pages 171-188 Kinematical Consequences of Inertial Forces in General Relativity A. R. Prasanna, Sai Iyer Pages 189-206 Analysis of the Equilibrium of a Charged Test Particle in the Kerr-Newman Black Hole ...
On the linear stability of the extreme Kerr black hole under axially symmetric perturbations We prove that for axially symmetric linear gravita Sergio,Dain,Ivan,... - 《Classical & Quantum Gravity An Interantional Journal of Gravity Geometry of Field Theories Supergravity Cosmology》 被引量: 23发...
The Kerr–Newman metric describes the spacetime geometry surrounding a black hole of mass M, angular momentum per unit mass a = J/M, electric charge Q, and magnetic charge Qm. Dedimensionalizing the quantities via \(a=M\hat{a}\), \(Q=M\hat{Q}\), \(Q_{\rm{m}}=M\hat{Q}...
Connecting the horizon geometry with post-merger chirps Next, we connect the arm structure ofΨ4present on the dynamical apparent horizon with its curvature. To this, we measureΨ4on the intersection of the horizon with the original orbital plane of the binary (i.e., on the final horizon eq...
The temperature T is defined as the inverse of the Euclidean periodFootnote 1 at the horizon. In [13] this was generalized to the Kerr–Newman solution and a time dependent horizons. Two different questions arise after this. First, what does happen when the geometry has more than a single ...
This research seeks to shed light on the behavior of dark matter in the vicinity of black holes and provides insights into potential solutions for the observed discrepancies between theoretical predictions and observational data. One notable method for extending Schwarzschild-like black holes to Kerr-...