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@article{29876, author = {Toshmatov, Bobir and Stuchlík, Zdeněk}, article_number = {7}, doi = {http://dx.doi.org/10.1140/epjp/i2017-11596-3}, keywords = {quasinormal modes; massive scalar fields; black holes; cosmic repulsion}, language = {eng}, issn = {2190-5444}, journal = {European Physical Journal Plus}, title = {Slowly decaying resonances of massive scalar fields around Schwarzschild-de Sitter black holes}, url = {https://link.springer.com/article/10.1140%2Fepjp%2Fi2017-11596-3}, volume = {132}, year = {2017} }
TY - JOUR ID - 29876 AU - Toshmatov, Bobir - Stuchlík, Zdeněk PY - 2017 TI - Slowly decaying resonances of massive scalar fields around Schwarzschild-de Sitter black holes JF - European Physical Journal Plus VL - 132 IS - 7 SP - „324-1“-„324-9“ EP - „324-1“-„324-9“ SN - 21905444 KW - quasinormal modes KW - massive scalar fields KW - black holes KW - cosmic repulsion UR - https://link.springer.com/article/10.1140%2Fepjp%2Fi2017-11596-3 L2 - https://link.springer.com/article/10.1140%2Fepjp%2Fi2017-11596-3 N2 - We study in special limiting cases quasinormal modes of massive scalar fields in the Schwarzschild-de Sitter black hole backgrounds. We determine the lower limit on the mass parameter of the scalar field that allows the waves with quasinormal frequencies to propagate to infinity, showing that it depends on the spacetime parameters only. Then we discuss in the large multipole number limit quasinormal modes, whose frequencies can be directly related to the unstable circular photon geodesics. In the large scalar mass approximation, we demonstrate the new interesting phenomenon of slowly decaying resonances, that are strongly related to the maximum of the effective potential of the massive scalar field, which is located at the static radius of the Schwarzschild-de Sitter spacetimes, where the cosmic repulsion is just balanced by the black hole attraction. ER -
TOSHMATOV, Bobir and Zdeněk STUCHLÍK. Slowly decaying resonances of massive scalar fields around Schwarzschild-de Sitter black holes. \textit{European Physical Journal Plus}. 2017, vol.~132, No~7, p.~„324-1“-„324-9“, 9 pp. ISSN~2190-5444. Available from: https://dx.doi.org/10.1140/epjp/i2017-11596-3.
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