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@article{46121, author = {Abdujabbarov, Ahmadjon and Stuchlík, Zdeněk and Toshmatov, Bobir and Ahmedov, Bobomurat}, article_location = {US - Spojené státy americké}, article_number = {8}, doi = {http://dx.doi.org/10.1103/PhysRevD.91.083008}, keywords = {black hole spacetimes; test fields; WKB approach}, language = {eng}, issn = {1550-7998}, journal = {Physical Review D}, title = {Quasinormal modes of test fields around regular black holes}, url = {https://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.083008}, volume = {91}, year = {2015} }
TY - JOUR ID - 46121 AU - Abdujabbarov, Ahmadjon - Stuchlík, Zdeněk - Toshmatov, Bobir - Ahmedov, Bobomurat PY - 2015 TI - Quasinormal modes of test fields around regular black holes JF - Physical Review D VL - 91 IS - 8 SP - "083008-1"-"083008-13" EP - "083008-1"-"083008-13" SN - 15507998 KW - black hole spacetimes KW - test fields KW - WKB approach UR - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.083008 N2 - We study scalar, electromagnetic, and gravitational test fields in the Hayward, Bardeen, and Ayon-BeatoGarcia regular black hole spacetimes and demonstrate that the test fields are stable in all of these spacetimes. Using the sixth order WKB approximation of the linear "axial" perturbative scheme, we determine dependence of the quasinormal mode (QNM) frequencies on the characteristic parameters of the test fields and the spacetime charge parameters of the regular black holes. We give also the grey bodyfactors, namely, the transmission and reflection coefficients of scattered scalar, electromagnetic, and gravitational waves. We show that the damping of the quasinormal modes in regular black hole spacetimes is suppressed compared to the case of Schwarzschild black holes, and increasing the charge parameter of the regular black holes increases reflection and decreases the transmission factor of the incident waves for each of the test fields. ER -
ABDUJABBAROV, Ahmadjon, Zdeněk STUCHLÍK, Bobir TOSHMATOV a Bobomurat AHMEDOV. Quasinormal modes of test fields around regular black holes. \textit{Physical Review D}. US - Spojené státy americké, 2015, roč.~91, č.~8, s.~''083008-1''-''083008-13'', 13 s. ISSN~1550-7998. Dostupné z: https://dx.doi.org/10.1103/PhysRevD.91.083008.
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