A possible connection between the ridge and hypotenuse in the bispectrum of black hole X-ray binaries through quasi-periodic modulation

Pei Jin, Mariano Méndez, Federico Garc\'ıa +4

Quasi-periodic oscillations (QPOs) in black-hole X-ray binaries show nonlinear coupling with broadband variability, producing characteristic ridge, hypotenuse, and web-like structu…