Thermal behavior of a radially deformed black hole spacetime
arXiv:2102.04066 · doi:10.1140/epjc/s10052-021-09246-x
Abstract
In the present article, we study the Hawking effect and the bounds on greybody factor in a spacetime with radial deformation. This deformation is expected to carry the imprint of a non-Einsteinian theory of gravity, but shares some of the important characteristics of general relativity (GR). In particular, this radial deformation will restore the asymptotic behavior, and also allows for the separation of the scalar field equation in terms of the angular and radial coordinates -- making it suitable to study the Hawking effect and greybody factors. However, the radial deformation would introduce a change in the locations of the horizon, and therefore, the temperature of the Hawking effect naturally alters. In fact, we observe that the deformation parameter has an enhancing effect on both temperature and bounds on the greybody factor, which introduces a useful distinction with the Kerr spacetime. We discuss these effects elaborately, and broadly study the thermal behavior of a radially deformed spacetime.
arXiv commentMinor modifications, Published in: Eur.Phys.J.C
References in corpus (58)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Observation of Gravitational Waves from a Binary Black Hole Merger
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
- GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
- Hawking Radiation as Tunneling
- GW190814: Gravitational Waves from the Coalescence of a 23 M Black Hole with a 2.6 M Compact Object
- Testing General Relativity with Present and Future Astrophysical Observations
- Gravity Probe B: Final Results of a Space Experiment to Test General Relativity
- Hawking Radiation as Tunneling for Extremal and Rotating Black Holes
- Quantum Tunneling Beyond Semiclassical Approximation
- A Metric for Rapidly Spinning Black Holes Suitable for Strong-Field Tests of the No-Hair Theorem
- General parametrization of axisymmetric black holes in metric theories of gravity
- Anomalies, Hawking Radiations and Regularity in Rotating Black Holes
- General Rotating Black Holes in String Theory: Greybody Factors and Event Horizons
- New parametrization for spherically symmetric black holes in metric theories of gravity
- Tunnelling Methods and Hawking's radiation: achievements and prospects
- Detection of gravitational waves from black holes: Is there a window for alternative theories?
- Hawking Radiation from a (4+n)-dimensional Black Hole: Exact Results for the Schwarzschild Phase
- Testing General Relativity with the Shadow Size of Sgr A*
- Some general bounds for 1-D scattering
- Hawking radiation from dilatonic black holes via anomalies
- Hawking Radiation from Rotating Black Holes and Gravitational Anomalies
- Bounding the greybody factors for Schwarzschild black holes
- Greybody Factors and Charges in Kerr/CFT
- The Hawking cascade from a black hole is extremely sparse
- Quasinormal modes, scattering and Hawking radiation of Kerr-Newman black holes in a magnetic field
- Exact Solutions of Regge-Wheeler Equation and Quasi-Normal Modes of Compact Objects
- Greybody Factors for Scalar Fields emitted by a Higher-Dimensional Schwarzschild-de-Sitter Black-Hole
- Greybody factor for black holes in dRGT massive gravity
- Post-Kerr black hole spectroscopy
- Axisymmetric black holes allowing for separation of variables in the Klein-Gordon and Hamilton-Jacobi equation
- Exact Hawking Radiation of Scalars, Fermions, and Bosons Using the Tunneling Method Without Back-Reaction
- Bounding the Greybody Factors for Non-rotating Black Holes
- Hawking Radiation from Kerr-Newman Black Hole and Tunneling Mechanism
- Hawking Radiation Spectra for Scalar Fields by a Higher-Dimensional Schwarzschild-de-Sitter Black Hole
- Chern-Simons black holes: scalar perturbations, mass and area spectrum and greybody factors
- Regge-Wheeler equation, linear stability, and greybody factors for dirty black holes
- The Hawking effect and the bounds on greybody factor for higher dimensional Schwarzschild black holes
- Asymptotic Spectroscopy of Rotating Black Holes
- Greybody factors for a minimally coupled scalar field in three-dimensional Einstein-power-Maxwell black hole background
- Greybody factors for Myers-Perry black holes
- Horndeski theories confront the Gravity Probe B experiment
- Near horizon local instability and quantum thermality
- Horizon induces instability locally and creates quantum thermality
- Bounding the greybody factors for scalar excitations of the Kerr-Newman spacetime
- Greybody Factor and Hawking Radiation of Charged Dilatonic Black Holes
- Hawking radiation by Kerr black holes and conformal symmetry
- Bounding the greybody factors for the Reissner-Nordström black holes
- Evaporation of large black holes in AdS: greybody factor and decay rate
- Greybody factors for topological massless black holes
- Fermionic greybody factors in dilaton black holes
- Hawking Radiation of Vector Particles via Tunneling From 4-Dimensional And 5-Dimensional Black Holes
- An exact derivation of the Hawking effect in canonical formulation
- Fermionic greybody factors of two and five-dimensional dilatonic black holes
- A Black-Hole Primer: Particles, Waves, Critical Phenomena and Superradiant Instabilities
- Consistent derivation of the Hawking effect for both non-extremal and extremal Kerr black holes