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@article{76264, author = {Konoplya, Roman}, article_number = {6}, doi = {http://dx.doi.org/10.1103/PhysRevD.107.064039}, keywords = {gravitonial-waves;quasinormal modes; black holes}, language = {eng}, issn = {2470-0010}, journal = {Physical Review D}, title = {Quasinormal modes in higher-derivative gravity: Testing the black hole parametrization and sensitivity of overtones}, url = {https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.064039}, volume = {107}, year = {2023} }
TY - JOUR ID - 76264 AU - Konoplya, Roman PY - 2023 TI - Quasinormal modes in higher-derivative gravity: Testing the black hole parametrization and sensitivity of overtones JF - Physical Review D VL - 107 IS - 6 SP - "064039-1"-"064039-8" EP - "064039-1"-"064039-8" SN - 24700010 KW - gravitonial-waves;quasinormal modes KW - black holes UR - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.064039 N2 - The fundamental quasinormal modes of black holes in higher-derivative gravity given by the EinsteinWeyl action are known to be moderately corrected by the Weyl term. Here we will show that the first several overtones are highly sensitive to even a relatively small Weyl correction, which might be important when representing the earlier stage of the black hole ringdown. In addition, we have solved the problem related to the analytical parametrized approximation of the numerical black hole solution in the Einstein-Weyl theory: In some range of parameters, the approximation for the metric developed up to the third order leads to the unusual highly nonmonotonic behavior of the frequencies. We have shown that this problem can be solved via the extension of the parametrization of the metric to higher orders until reaching the regime when the frequencies do not change with further increasing of the order. ER -
KONOPLYA, Roman. Quasinormal modes in higher-derivative gravity: Testing the black hole parametrization and sensitivity of overtones. \textit{Physical Review D}. 2023, roč.~107, č.~6, s.~''064039-1''-''064039-8'', 8 s. ISSN~2470-0010. Dostupné z: https://dx.doi.org/10.1103/PhysRevD.107.064039.
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