The mHz QPO in 1ES 1927+654 has persisted and stabilized at ~2.5 mHz with stable soft lags, no strong harmonic, and repeatable large-amplitude flux patterns, also seen in NuSTAR.
M., Koerding E., Knigge C., Uttley P., Fender R
6 Pith papers cite this work. Polarity classification is still indexing.
6
Pith papers citing it
years
2026 6representative citing papers
Simulations show the accretion rate PSD in a q=0.2 SMBH binary is a broken power-law with white noise to -4 slope transition at ~5 times orbital frequency due to damped random walk gas delivery and minidisk filtering.
Multi-epoch X-ray analysis of PHL 1811 indicates its apparent weakness results from heavy obscuration by a radiatively driven wind rather than intrinsic X-ray weakness.
Mass-scaled DRW damping timescales in AGNs follow a linear relation with black hole mass (slope 0.35-0.50) for both jetted and non-jetted sources, supporting universal accretion physics.
Lazuli is proposed as a space observatory combining flagship sensitivity with response times one to two orders of magnitude faster than current large facilities to enable new time-domain and multi-messenger science.
Quantum hydrodynamic simulation of a helium white dwarf disrupted by a black hole predicts quantized vortices generating flickering EM radiation in the accretion disk and gravitational waves from the elongated white dwarf.
citing papers explorer
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Persistence of the Millihertz X-ray Quasi-Periodic Oscillation in the Active Galactic Nucleus 1ES 1927+654
The mHz QPO in 1ES 1927+654 has persisted and stabilized at ~2.5 mHz with stable soft lags, no strong harmonic, and repeatable large-amplitude flux patterns, also seen in NuSTAR.
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Stochastic Variability of Binary Accretion
Simulations show the accretion rate PSD in a q=0.2 SMBH binary is a broken power-law with white noise to -4 slope transition at ~5 times orbital frequency due to damped random walk gas delivery and minidisk filtering.
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The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness
Multi-epoch X-ray analysis of PHL 1811 indicates its apparent weakness results from heavy obscuration by a radiatively driven wind rather than intrinsic X-ray weakness.
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A universal relationship between the variability timescale and black hole mass in black hole jetted and non-jetted accreting systems
Mass-scaled DRW damping timescales in AGNs follow a linear relation with black hole mass (slope 0.35-0.50) for both jetted and non-jetted sources, supporting universal accretion physics.
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The Lazuli Space Observatory: Opportunities for time-domain and multi-messenger astronomy
Lazuli is proposed as a space observatory combining flagship sensitivity with response times one to two orders of magnitude faster than current large facilities to enable new time-domain and multi-messenger science.
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Searching for cosmic vortices
Quantum hydrodynamic simulation of a helium white dwarf disrupted by a black hole predicts quantized vortices generating flickering EM radiation in the accretion disk and gravitational waves from the elongated white dwarf.