Central AdS Generalized Ay{\'o}n-Beato-Garc{\'\i}a Black Holes and Joule-Thomson Expansion

Document Type : Research Paper

Authors

1 Faculty of Physics, Semnan university, semnan, iran

2 Faculty of Physics, Semnan Universiy, Semnan, Iran, 35131-19111

Abstract

In this paper, the Joule-Thomson (JT) adiabatic expansion is

investigated for generalized Ayon-Beato-Garcia (ABG)

\textcolor[rgb]{0.00,0.00,1.00}{regular} black hole. It has a

magnetic charge which makes central region of the black hole

metric to be AdS spacetime and so become non singular.

\textcolor[rgb]{0.00,0.00,1.00}{Thus we not need to use an

additional cosmological parameter coming from ADS/CFT

correspondence for production of pressure coordinate in the black

hole equation of state. Form this point of view our work is a new

approach versus to conventional methods which are addressed in the

references of this paper. However we will see important behavior

of parameters of this modified ABG black hole on possibility of

being of JT adiabatic expansion.} This black hole is characterized

by five parameters including mass $m$, magnetic charge $q$, and

three \textcolor[rgb]{0.00,0.00,1.00}{other} parameters related to

form of used nonlinear electromagnetic interaction fields.

\textcolor[rgb]{0.00,0.00,1.00}{Inversion points are in fact a

particular T-P curve at constant enthalpy and it separates cooling

and heating phase of the modified AdS ABG black hole.}

Keywords

References

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Iranian Journal of Astronomy and Astrophysics
Volume 9, Issue 2
October 2022
Pages 109-119

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