Type-C QPO amplitudes correlate linearly with jet inclination up to 8 Hz in BH LMXBs, lower on decay than rise, reproducible by precessing hot flow if misalignment ≥10-15°.
An Accretion-Ejection Instability in magnetized disks
4 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
We present an instability occurring in the inner part of disks threaded by a moderately strong vertical (poloidal) magnetic field. Its mechanism is such that a spiral density wave in the disk, driven by magnetic stresses (rather than self-gravity as in galactic spirals), becomes unstable by exchanging angular momentum with a Rossby vortex it generates at its corotation radius. This angular momentum can then ``leak'' as Alfven waves emitted toward the corona of the disk thus providing, as an element of the accretion process, an energetic source for a wind or a jet. As galactic spirals, this instability forms low azimuthal wavenumber, standing spiral patterns which might provide an explanation for low-frequency QPOs in low-mass X-ray binaries.
fields
astro-ph.HE 4years
2026 4representative citing papers
First detection of QPOs above 250 keV in Swift J1727.8-1613 with up to 8.9 sigma significance, showing decreasing rms and increasing soft lags that suggest a geometric origin from small-scale jet precession.
A recurring 0.03 Hz radio QPO was detected in the 2025 flare of GRS 1915+105 at >5.9 sigma in one epoch, identical across S- and X-bands and prior years, indicating an intrinsic accretion-jet timescale.
citing papers explorer
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The strength of Type-C quasi-periodic oscillations in black hole X-ray binaries correlates with the jet inclination
Type-C QPO amplitudes correlate linearly with jet inclination up to 8 Hz in BH LMXBs, lower on decay than rise, reproducible by precessing hot flow if misalignment ≥10-15°.
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Search for the Highest-energy Quasiperiodic Oscillation in the Black Hole X-Ray Binary Candidate Swift J1727.8-1613
First detection of QPOs above 250 keV in Swift J1727.8-1613 with up to 8.9 sigma significance, showing decreasing rms and increasing soft lags that suggest a geometric origin from small-scale jet precession.
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A 0.03 Hz Radio Quasi-periodic Oscillation During the 2025 Flare of GRS 1915+105
A recurring 0.03 Hz radio QPO was detected in the 2025 flare of GRS 1915+105 at >5.9 sigma in one epoch, identical across S- and X-bands and prior years, indicating an intrinsic accretion-jet timescale.