典型文献
Shadows and observational appearance of a new family of Ayón-Beato-García black holes
文献摘要：
In this paper,we study the shadows and observational appearance of the Ay6n-Beato-Garcia(ABG)black hole,which is surrounded by a thin disk accretion.For a four-dimensional ABG black hole,as the charge q increases,the event horizon r+,radius rp and impact parameter bp of the photon sphere decrease,while the maximum value of effective potential Veff increases.However,as the term γ associated with nonlinear electrodynamics increases,the related physical quantities r+,rp and bp increase,but the maximum value of Veff decreases.When the light ray reaches the vicinity of the ABG black hole,one can observe the trajectories of the light rays appearing as three types,i.e.,direct emission,lens ring and photon ring.Furthermore,the shadows and the observational appearance of the ABG black hole are studied.The results show that the charge q and the termγ have a great influence on the shape and intensity of the black hole shadow.When the relevant state parameters change or the emission model changes,it can be argued that it is the direct emission that plays a decisive role in the total observed intensity of the ABG black hole,while the contribution of the lens ring to the total observed intensity is small and the photon ring makes almost no contribution.
文献关键词：
中图分类号：
作者姓名：
Ping-Hui Mou;Yun-Xian Chen;Ke-Jian He;Guo-Ping Li
作者机构：
School of Physics and Astronomy,China West Normal University,Nanchong 637000,China;Department of Physics and Chongqing Key Laboratory for Strongly Coupled Physics,Chongqing University,Chongqing 401331,China
文献出处：
引用格式：
[1]Ping-Hui Mou;Yun-Xian Chen;Ke-Jian He;Guo-Ping Li-.Shadows and observational appearance of a new family of Ayón-Beato-García black holes)[J].理论物理,2022(12):87-96
A类：
Shadows,Beato,Garc,Ay6n,r+
B类：
observational,appearance,new,family,black,holes,In,this,paper,study,shadows,Garcia,ABG,which,surrounded,by,thin,disk,accretion,For,four,dimensional,charge,increases,event,horizon,radius,rp,impact,bp,photon,sphere,while,maximum,value,effective,potential,Veff,However,term,associated,nonlinear,electrodynamics,related,physical,quantities,decreases,When,light,reaches,vicinity,one,can,trajectories,rays,appearing,three,types,direct,emission,lens,Furthermore,are,studied,results,show,that,have,great,influence,shape,intensity,relevant,state,parameters,model,changes,be,argued,plays,decisive,role,total,observed,contribution,small,makes,almost
AB值：
0.43887
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