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@article{36725, author = {Turimov, Bobur and Toshmatov, Bobir and Ahmedov, Bobomurot and Stuchlík, Zdeněk}, article_number = {8}, doi = {http://dx.doi.org/10.1103/PhysRevD.100.084038}, keywords = {magnetized black hole; quasinormal modes; stability}, language = {eng}, issn = {2470-0010}, journal = {Physical Review D}, title = {Quasinormal modes of magnetized black hole}, url = {https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.084038}, volume = {100}, year = {2019} }
TY - JOUR ID - 36725 AU - Turimov, Bobur - Toshmatov, Bobir - Ahmedov, Bobomurot - Stuchlík, Zdeněk PY - 2019 TI - Quasinormal modes of magnetized black hole JF - Physical Review D VL - 100 IS - 8 SP - "084038-1"-"084038-8" EP - "084038-1"-"084038-8" SN - 24700010 KW - magnetized black hole KW - quasinormal modes KW - stability UR - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.084038 L2 - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.084038 N2 - We investigate a charged, massive scalar field around a static, spherically symmetric black hole immersed into an external asymptotically uniform magnetic field B. It is shown that for given multipole number l there are 2l + 1 numbers of modes due to the Zeeman effect appearing by an interaction of the external magnetic and charged scalar fields introducing an effective mass of the scalar field mu_(eff) = square root (mu^2 - mqB) where m is the azimuthal number and q is the charge coupling constant. We calculate threshold value of effective mass in which quasinormal modes are arbitrarily long lived and beyond that value quasinormal modes vanish. In the case of mqB < 0 quasinormal modes are longer lived with larger oscillation frequencies. Whenever, magnetic and massive scalar fields satisfies condition mu^(2)_(eff) < 0, an instability appears, i.e., if qB > 0 or qB < 0 there is an instability for the values of azimuthal number m > mu^2/qB or m < mu^2/qB, respectively. ER -
TURIMOV, Bobur, Bobir TOSHMATOV, Bobomurot AHMEDOV a Zdeněk STUCHLÍK. Quasinormal modes of magnetized black hole. \textit{Physical Review D}. 2019, roč.~100, č.~8, s.~''084038-1''-''084038-8'', 8 s. ISSN~2470-0010. Dostupné z: https://dx.doi.org/10.1103/PhysRevD.100.084038.
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