Iron line variability of discoseismic corrugation modes

  title={Iron line variability of discoseismic corrugation modes},
  author={David Tsang and Iryna S. Butsky},
  journal={Monthly Notices of the Royal Astronomical Society},
Using a fast semi-analytic raytracing code, we study the variability of relativistically broadened Fe–Kα lines due to discoseismic oscillations concentrated in the innermost regions of accretion discs around black holes. The corrugation mode, or c-mode, is of particular interest as its natural frequency corresponds well to the ∼0.1–15 Hz range observed for low-frequency quasi-periodic oscillations (LFQPOs) for lower spins. Comparison of the oscillation phase dependent variability and quasi… Expand
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