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@article{76282, author = {Konoplya, Roman}, article_number = {14}, doi = {http://dx.doi.org/10.1142/S0218271823420142}, keywords = {Black hole;quasinormal mode;gravitational wave}, language = {eng}, issn = {0218-2718}, journal = {International Journal of Modern Physics D}, title = {The sound of the event horizon}, url = {https://www.worldscientific.com/doi/10.1142/S0218271823420142}, volume = {32}, year = {2023} }
TY - JOUR ID - 76282 AU - Konoplya, Roman PY - 2023 TI - The sound of the event horizon JF - International Journal of Modern Physics D VL - 32 IS - 14 SP - "2342014-1"-"2342014-5" EP - "2342014-1"-"2342014-5" SN - 02182718 KW - Black hole;quasinormal mode;gravitational wave UR - https://www.worldscientific.com/doi/10.1142/S0218271823420142 N2 - During the ringdown phase of a gravitational signal emitted by a black hole, the least damped quasinormal frequency dominates. If modifications to Einstein's theory induce noticeable deformations of the black-hole geometry only near the event horizon, the fundamental mode remains largely unaffected. However, even a small change near the event horizon can significantly impact the first few overtones, providing a means to probe the geometry of the event horizon. Overtones are stable against small deformations of spacetime at a distance from the black hole, allowing the event horizon to be distinguished from the surrounding environment. In contrast to echoes, overtones make a much larger energy contribution. These findings open up new avenues for future observations. ER -
KONOPLYA, Roman. The sound of the event horizon. \textit{International Journal of Modern Physics D}. 2023, roč.~32, č.~14, s.~''2342014-1''-''2342014-5'', 5 s. ISSN~0218-2718. Dostupné z: https://dx.doi.org/10.1142/S0218271823420142.
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