QPO frequency derivative - frequency correlation indicates non-Keplerian boundary layer with a maximum in rotation rate
arXiv:1607.03653 · doi:10.1093/mnrasl/slw138
Abstract
The correlation between the frequency and the absolute value of the frequency derivative of the kilohertz QPOs observed for the first time from 4U 1636-53 is a simple consequence and indicator of the existence of a non-Keplerian rotation rate in the accretion disk boundary layer. This paper interprets the observed correlation, showing that the observations provide strong evidence in support of the fundamental assumption of disk accretion models around slow rotators, that the boundary layer matches the Keplerian disk to the neutron star magnetosphere.
arXiv commentAccepted for publication in MNRAS Letters
References in corpus (15)
- Lense-Thirring Precession and QPOs in Low Mass X-Ray Binaries
- Millisecond Oscillations in X-Ray Binaries
- Discovery of Sub-Millisecond Quasi-Periodic Oscillations in the X-Ray Flux of Scorpius X-1
- Relativistic Diskoseismology
- Dependence of the Frequency of the Kilohertz Quasi-Periodic Oscillations on X-ray Count Rate and Colors in 4U 1608-52
- A Possible Explanation for the "Parallel Tracks" Phenomenon in Low-Mass X-Ray Binaries
- Non-linear resonance in the accretion disk of a millisecond pulsar
- On the Rotational Dynamics of Magnetically Threaded Disks around Neutron Stars
- Kilohertz quasi-periodic oscillations in low mass X-ray binary sources and their relation with the neutron star magnetic field
- The time derivative of the kilohertz quasi-periodic oscillations in 4U 1636-53
- On the Disappearance of Kilohertz Quasi-Periodic Oscillations at a High Mass Accretion Rate in Low-Mass X-ray Binaries
- Quasi-periodic oscillations as global hydrodynamic modes in the boundary layers of viscous accretion disks
- Resonant Excitation of Disk Oscillations in Two-Armed-Deformed Disks and Application to High-Frequency QPOs
- On the high-frequency quasi-periodic oscillations from black holes
- An Attempt to Describe Frequency-Correlations among kHz QPOs and HBOs by Two-Armed Vertical p-mode Oscillations: Case of No Magnetic Field