Recurrence analysis as a tool to study chaotic dynamics of extreme mass ratio inspiral in signal with noise

0497115 - ASÚ 2019 RIV SG eng J - Článek v odborném periodiku
Lukes-Gerakopoulos, Georgios - Kopáček, Ondřej
Recurrence analysis as a tool to study chaotic dynamics of extreme mass ratio inspiral in signal with noise.
International Journal of Modern Physics D. Roč. 27, č. 2 (2018), č. článku 1850010. ISSN 0218-2718. E-ISSN 1793-6594
Grant CEP: GA MŠMT LD15061; GA ČR(CZ) GJ17-06962Y
Institucionální podpora: RVO:67985815
Klíčová slova: black holes * chaos
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 2.004, rok: 2018

Recurrence analysis is a well-settled method allowing to discern chaos from order and determinism from noise. We apply this tool to study time series representing geodesic and inspiraling motion of a test particle in a deformed Kerr spacetime, when deterministic chaos and different levels of stochastic noise are present. In particular, we suggest a recurrence-based criterion to reveal whether the time series comes from a deterministic source and find a noise-level threshold of its applicability.
Trvalý link: http://hdl.handle.net/11104/0289707