Shadow thermodynamics of the Hayward-AdS black hole

Abstract

In this paper, the phase structure of the Hayward-AdS black hole (BH) is studied using shadow formalism. It has been found that the shadow radius is a monotonic function of the horizon radius and can therefore play an equivalent role to the horizon radius in characterizing the thermodynamics of Hayward-AdS BH. The thermodynamic phase transition (PT) of the Hayward-AdS BH is investigated with the shadow radius. It is shown that as the magnetic charge increases, the shadow radius becomes larger, while the coexistence temperature becomes lower. The thermal profile of the Hayward-AdS BH is established by combining the temperature diagram and the shadow cast diagram, which shows that for a fixed magnetic charge, the temperature of the Hayward-AdS BH increases with the pressure while the region of the thermal profile decreases with the pressure. In particular, the temperature of the Hayward-AdS BH follows an N-type change trend when it is smaller than the critical temperature. This imply that the BH shadow may be used to investigate the thermodynamics of the Hayward-AdS BH.

14 pages, 6 figures

References in corpus (27)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way
• First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
• First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
• First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
• First M87 Event Horizon Telescope Results. II. Array and Instrumentation
• First M87 Event Horizon Telescope Results. III. Data Processing and Calibration
• Black Hole Enthalpy and an Entropy Inequality for the Thermodynamic Volume
• First Sagittarius A* Event Horizon Telescope Results. VI: Testing the Black Hole Metric
• First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole
• First Sagittarius A* Event Horizon Telescope Results. III: Imaging of the Galactic Center Supermassive Black Hole
• First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multi-wavelength Observations, Data Processing, and Calibration
• First Sagittarius A* Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass
• Shadow of a black hole surrounded by dark matter
• Multiple Reentrant Phase Transitions and Triple Points in Lovelock Thermodynamics
• Apparent shape of super-spinning black holes
• Magnetically charged black holes from non-linear electrodynamics and the Event Horizon Telescope
• Black holes with scalar hair in light of the Event Horizon Telescope
• Shadow of five-dimensional rotating Myers-Perry black hole
• Superfluid Black Holes
• van der Waals like behaviour of topological AdS black holes in massive gravity
• Hidden symmetries, null geodesics, and photon capture in the Sen black hole
• Shape and position of the shadow in the $\delta =2$ Tomimatsu-Sato space-time
• Influence of a plasma on the observational signature of a high-spin Kerr black hole
• Thermal Image and Phase Transitions of Charged AdS Black Holes using Shadow Analysis
• Does the shape of the shadow of a black hole depend on motional status of an observer?
• Shadow thermodynamics of non-linear charged Anti-de Sitter black holes