Shadow of a nonsingular black hole

Guo, Wen-Di; Wei, Shao-Wen; Liu, Yu-Xiao

doi:10.48550/arxiv.2203.13477

Cited by 3 publications

(3 citation statements)

References 64 publications

(85 reference statements)

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“…For instance, one finds that the shadow can be used to test the Lorentz symmetry. [13] And by considering accretions surrounded black hole or not, the shadows of different types of black holes and wormholes have also been clearly studied, [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] where some important result are obtained.…”

Section: Introductionmentioning

confidence: 99%

Shadow Thermodynamics of AdS Black Hole with the Nonlinear Electrodynamics Term

He-Bin¹,

Mou²,

Chen³

et al. 2023

Preprint

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In this paper, we have creatively employed the shadow radius to study the thermodynamics of a charged AdS black hole with a nonlinear electrodynamics(NLED) term. First, the connection between the shadow radius and event horizon is constructed with the aid of the geodesic analysis. It turns out that the black hole shadow radius shows a positive correlation as a function of the event horizon radius. Then in the shadow context, we found that the black hole temperature and heat capacity can be presented by the shadow radius. And further analysis shows that the shadow radius can do as well as the event horizon in revealing black hole phase transition process. In this sense, we constructed the thermal profile of the charged AdS black hole with inclusion of the NLED effect. In P < P c case, it is found that the N -type trend of the temperature given by the shadow radius is always coincide with that obtained by using the event horizon. So, we can concluded for the charged AdS black hole that the phase transition process can be intuitively presented as the thermal profile in the shadow context. Finally, the effects of NLED have been carefully analysed through out the paper.

show abstract

Section: Introductionmentioning

confidence: 99%

Shadow Thermodynamics of AdS Black Hole with the Nonlinear Electrodynamics Term

He-Bin¹,

Mou²,

Chen³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…For instance, one finds that the shadow can be used to test the Lorentz symmetry. [13] By considering accretions surrounding black hole or not, the shadows of different types of black holes and wormholes have also been clearly studied, [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] where some important result are obtained.…”

Section: Introductionmentioning

confidence: 99%

Shadow thermodynamics of AdS black hole with the nonlinear electrodynamics term

et al. 2023

View full text Add to dashboard Cite

In this paper, we have creatively employed the shadow radius to study the thermodynamics of a charged AdS black hole with a nonlinear electrodynamics(NLED) term. First, the connection between the shadow radius and event horizon is constructed with the aid of the geodesic analysis. It turns out that the black hole shadow radius shows a positive correlation as a function of the event horizon radius. Then in the shadow context, we found that the black hole temperature and heat capacity can be presented by the shadow radius. And further analysis shows that the shadow radius can do as well as the event horizon in revealing black hole phase transition process. In this sense, we constructed the thermal profile of the charged AdS black hole with inclusion of the NLED effect. In $P<P_c$ case, it is found that the $N$-type trend of the temperature given by the shadow radius is always coincide with that obtained by using the event horizon. So, we can concluded for the charged AdS black hole that the phase transition process can be intuitively presented as the thermal profile in the shadow context. Finally, the effects of NLED have been carefully analysed through out the paper.

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“…Particle motion with Poincaré cones have previously been studied, for instance, around magnetically-charged Reissner-Nordström spacetimes [13][14][15], and black hole/solitons with a compact extra dimension stabilised by a magnetic flux [16]. Recently, shadows and null geodesics around this latter system has been studied as well [17]. In this paper, we study the generic situation of any spacetime with spherical symmetry with a magnetic monopole field.…”

Section: Introductionmentioning

confidence: 99%

Motion of charged particles in spacetimes with magnetic fields of spherical and hyperbolic symmetry

Lim

2022

Preprint

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The motion of charged particles in spacetimes containing a submanifold of constant positive or negative curvature are considered, with the electromagnetic tensor proportional to the volume two-form form of the submanifold. In the positive curvature case, this describes spherically symmetric spacetimes with a magnetic monopole, while in the negative curvature case, it is a hyperbolic spacetime with magnetic field uniform along hyperbolic surfaces.Constants of motion are found by considering Poisson brackets defined on a phase space with gauge-covariant momenta. In the spherically-symmetric case, we find a correspondence between the trajectories on the Poincaré cone with equatorial geodesics in a conical defect spacetime. In the hyperbolic case, the analogue of the Poincaré cone is defined as a surface in an auxiliary Minkowski spacetime. Explicit examples are solved for the Minkowski, AdS 4 × S 2 , and the hyperbolic AdS-Reissner-Nordström spacetimes.

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Shadow of a nonsingular black hole

Cited by 3 publications

References 64 publications

Shadow Thermodynamics of AdS Black Hole with the Nonlinear Electrodynamics Term

Shadow Thermodynamics of AdS Black Hole with the Nonlinear Electrodynamics Term

Shadow thermodynamics of AdS black hole with the nonlinear electrodynamics term

Motion of charged particles in spacetimes with magnetic fields of spherical and hyperbolic symmetry

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