典型文献
Quasinormal modes and absorption of a massless scalar field for the magnetic Gauss-Bonnet black hole
文献摘要：
We study the massless scalar quasinormal frequencies of an asymptotically flat static and spherically symmetric black hole with a nonzero magnetic charge in four-dimensional extended scalar-tensor-Gauss-Bonnet theory.The results show that the real part of the quasinormal frequency becomes larger and the imaginary part becomes smaller with increasing the magnetic charge or the angular harmonic index.The existence of magnetic charges will reduce the damping of scalar perturbation,but increase the frequency.We also study the absorption cross-section of the scalar field in this black hole.We find that its curve will become lower as the magnetic charge increases,i.e.the magnetic charge will weaken the absorption capacity of the black hole.Meanwhile,the high-frequency limit of the total absorption cross-section is just the area of black hole shadow.
文献关键词：
中图分类号：
作者姓名：
Chen Ma;Yu Zhang;Qian Li;Zhi-Wen Lin
作者机构：
Faculty of Science,Kunming University of Science and Technology,Kunming,Yunnan 650500,China
文献出处：
引用格式：
[1]Chen Ma;Yu Zhang;Qian Li;Zhi-Wen Lin-.Quasinormal modes and absorption of a massless scalar field for the magnetic Gauss-Bonnet black hole)[J].理论物理,2022(06):113-121
A类：
Quasinormal,massless,quasinormal
B类：
modes,absorption,scalar,field,magnetic,Gauss,Bonnet,black,hole,We,study,frequencies,asymptotically,flat,static,spherically,symmetric,nonzero,four,dimensional,extended,tensor,theory,results,show,that,real,part,frequency,becomes,larger,imaginary,smaller,increasing,angular,harmonic,existence,charges,will,reduce,damping,perturbation,but,also,cross,section,this,find,its,curve,lower,increases,weaken,capacity,Meanwhile,high,limit,total,just,area,shadow
AB值：
0.465389
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