MGAT10 - Chaos in rotating systems |
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Speaker |
Mukhopadhyay, Banibrata |
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Co-autors |
Bidya Binay Karak, Jayanta Dutta |
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Talk Title |
Chaos in black hole and neutron star systems: based on satellite data from LMXBs |
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Abstract |
The accretion disk around a compact object is a nonlinear general relativistic system involving magnetohydrodynamics. Naturally the question arises whether such a system is chaotic (deterministic) or stochastic (random) which might be related to the associated transport properties whose origin is still not confirmed yet. By computing correlation dimension based on observed data, we show that the black hole system GRS 1915+105 behaves as a low dimensional chaos in certain temporal classes. We also show that neutron stars, which are unique for their kHz QPOs arised presumably from nonlinear mechanisms around them, such that Sco X-1, Cyg X-2 are low dimensional chaotic systems. Based on our analysis, we argue that Cyg X-3 may be a neutron star. |
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