What does this research mean for the field?

In a hairy Kiselev black hole surrounded by quintessential fluid, exponential hair primarily affects the small-horizon thermodynamic regime, while the quintessential sector and cosmological constant drive large-scale behavior, leading to second-order phase transitions and highly intermittent Hawking radiation. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Investigate the thermodynamic properties, Hawking radiation emission sparsity, and scalar perturbation behavior of a hairy Kiselev black hole surrounded by quintessential matter and a cosmological constant.

August 23, 2026International Journal of Modern Physics A

Hairy Kiselev black hole with quintessential matter: thermodynamic properties, sparsity of Hawking radiation, and greybody factors

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Authors

FAFaizuddin Ahmed FBFernando M. Belchior AMAllan R. P. Moreira

Discussion

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Overview

Theoretical analysis demonstrates horizon-dependent phase transitions and intermittent Hawking radiation in hairy quintessential black holes, highlighting complex gravitational dynamics.

Key Points

Investigate the thermodynamic properties, Hawking radiation emission sparsity, and scalar perturbation behavior of a hairy Kiselev black hole surrounded by quintessential matter and a cosmological constant.
Derived black hole horizon structures, Hawking temperature, heat capacity, and Gibbs free energy incorporating exponential hair scales and quintessential fluid parameters.
Calculated Hawking radiation emission sparsity as a function of temperature, effective emitting area, and greybody factor bounds.
Modeled massless scalar perturbations by transforming the Klein-Gordon equation into a Schrödinger-like radial differential equation with an effective potential barrier.
Exponential hair modifications primarily alter the small-horizon regime, while the quintessential fluid and cosmological constant dictate large-scale thermodynamic behavior.
Heat capacity profiles show distinct divergences marking second-order phase transitions, and Gibbs free energy displays multiple competing thermodynamic branches.
Hawking radiation emission operates in a highly intermittent, sparse regime rather than as a steady, continuous particle flux.

Cite This Study

Ahmed et al. (2026) studied this question.

synapsesocial.com/papers/6a8acec27677a341144477bc https://doi.org/10.1142/s0217751x26501691

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August 23, 2026International Journal of Modern Physics A

Hairy Kiselev black hole with quintessential matter: thermodynamic properties, sparsity of Hawking radiation, and greybody factors

View Full Paper

Ask AI

Bookmark

Authors

FAFaizuddin Ahmed FBFernando M. Belchior AMAllan R. P. Moreira

Discussion

Member takes

Overview

Theoretical analysis demonstrates horizon-dependent phase transitions and intermittent Hawking radiation in hairy quintessential black holes, highlighting complex gravitational dynamics.

Key Points

Investigate the thermodynamic properties, Hawking radiation emission sparsity, and scalar perturbation behavior of a hairy Kiselev black hole surrounded by quintessential matter and a cosmological constant.
Derived black hole horizon structures, Hawking temperature, heat capacity, and Gibbs free energy incorporating exponential hair scales and quintessential fluid parameters.
Calculated Hawking radiation emission sparsity as a function of temperature, effective emitting area, and greybody factor bounds.
Modeled massless scalar perturbations by transforming the Klein-Gordon equation into a Schrödinger-like radial differential equation with an effective potential barrier.
Exponential hair modifications primarily alter the small-horizon regime, while the quintessential fluid and cosmological constant dictate large-scale thermodynamic behavior.
Heat capacity profiles show distinct divergences marking second-order phase transitions, and Gibbs free energy displays multiple competing thermodynamic branches.
Hawking radiation emission operates in a highly intermittent, sparse regime rather than as a steady, continuous particle flux.

Cite This Study

Ahmed et al. (2026) studied this question.

synapsesocial.com/papers/6a8acec27677a341144477bc https://doi.org/10.1142/s0217751x26501691

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