TY - JOUR A1 - Konoplya, Roman A1 - Zhidenko, Alexander T1 - Detection of gravitational waves from black holes T2 - Physics Letters B N2 - Recently the LIGO and VIRGO Collaborations reported the observation of gravitational-wave signal corresponding to the inspiral and merger of two black holes, resulting into formation of the final black hole. It was shown that the observations are consistent with the Einstein theory of gravity with high accuracy, limited mainly by the statistical error. Angular momentum and mass of the final black hole were determined with rather large allowance of tens of percents. Here we shall show that this indeterminacy in the range of the black-hole parameters allows for some non-negligible deformations of the Kerr spacetime leading to the same frequencies of the black-hole ringing. This means that at the current precision of the experiment there remains some possibility for alternative theories of gravity. Y1 - 2016 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54673 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-546732 SN - 1873-2445 SN - 0370-2693 N1 - This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). VL - 756.2016 SP - 350 EP - 353 PB - Elsevier CY - Amsterdam ER -