Spin Hall nano-oscillators (SHNOs) are nanoscale spintronic devices that convert direct current into high-frequency microwave ...

We perform the quasi-periodic oscillation (QPO) analysis of blazar PKS 1424–418 in the γ-ray (0.1–300 GeV) band from 2009 May 12 to 2019 September 17 (MJD 54963–58743). Using the spectral domain ...

By leveraging natural oscillation patterns and precise timing ... exhibit chaotic and unpredictable dynamics but also show predictable periodic motions called nonlinear normal modes (NNMs).

T = period = time it takes for one complete vibration or oscillation, in seconds s. A boat at sea bobs up and down as waves pass. The vertical distance between a crest and a trough is 52 cm and 20 ...

A millihertz frequency X-ray quasi-periodic oscillation has been observed near the innermost orbit of an actively accreting supermassive black hole and its frequency has evolved significantly ...