Quasi-periodic flux variations in pulsar 1A 0535+262 are accompanied by synchronized cyclotron line energy oscillations, providing evidence for rapid geometric reconfiguration of the accretion column in the radiation-pressure-dominated regime.
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astro-ph.HE 8years
2026 8representative citing papers
Phase-resolved high-resolution spectroscopy of M82 X-2 with XRISM Resolve finds broader Fe Kα line during pulse peak, indicating origin in the accretion flow with velocity dispersion of about 1700 km/s.
First detection of mHz QPOs in 1A 0535+262 below 27 keV with frequencies evolving from 41 to 93 mHz, mostly hard lags, and double-peaked high-energy structure near outburst peak, interpreted as linked to soft-photon source and Comptonizing outflow evolution.
X-ray timing and spectral analysis of ASKAP J174508.9-505149 detects matching periodicity and features consistent with an accreting magnetic CV.
Numerical solutions of hydrodynamics and polarized radiative transfer show that resonant Compton scattering near the cyclotron resonance redistributes radiation and reduces light-curve modulation amplitude in subcritical X-ray pulsars.
New XRISM observations confirm a highly broadened, pulsating Fe K line from the accretion column of Hercules X-1 that varies with pulse phase and evolves with the 35-day precession cycle.
The 2026 outburst of 1A 1118-61 is brighter and spectrally harder than in 2009, with constant cyclotron line energy across large luminosity changes and QPO frequency suggesting magnetospheric instabilities.
citing papers explorer
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Rapid quasi-periodic reconfiguration of the accretion column in pulsar 1A 0535+262
Quasi-periodic flux variations in pulsar 1A 0535+262 are accompanied by synchronized cyclotron line energy oscillations, providing evidence for rapid geometric reconfiguration of the accretion column in the radiation-pressure-dominated regime.
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The First Insights into an Ultraluminous X-ray Pulsar with XRISM: Phase-Resolved High-Resolution Spectroscopy of the Fe K-shell Band of M82 X-2
Phase-resolved high-resolution spectroscopy of M82 X-2 with XRISM Resolve finds broader Fe Kα line during pulse peak, indicating origin in the accretion flow with velocity dispersion of about 1700 km/s.
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Unveiling hidden millihertz quasi-periodic oscillations in 1A 0535+262
First detection of mHz QPOs in 1A 0535+262 below 27 keV with frequencies evolving from 41 to 93 mHz, mostly hard lags, and double-peaked high-energy structure near outburst peak, interpreted as linked to soft-photon source and Comptonizing outflow evolution.
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The X-ray emission of the long-period transient and accreting cataclysmic variable ASKAP J174508.9-505149
X-ray timing and spectral analysis of ASKAP J174508.9-505149 detects matching periodicity and features consistent with an accreting magnetic CV.
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Beaming of polarized radiation in subcritical X-ray pulsars
Numerical solutions of hydrodynamics and polarized radiative transfer show that resonant Compton scattering near the cyclotron resonance redistributes radiation and reduces light-curve modulation amplitude in subcritical X-ray pulsars.
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XRISM/Resolve observations of Hercules X-1: a pulsating, highly broadened Fe K emission line from the neutron star accretion column
New XRISM observations confirm a highly broadened, pulsating Fe K line from the accretion column of Hercules X-1 that varies with pulse phase and evolves with the 35-day precession cycle.
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Accretion geometry and spectral evolution in 1A 1118-61: a comparison of the 2009 and 2026 outbursts
The 2026 outburst of 1A 1118-61 is brighter and spectrally harder than in 2009, with constant cyclotron line energy across large luminosity changes and QPO frequency suggesting magnetospheric instabilities.
- Vacuum polarization and cyclotron resonance effects on radiative transfer and plasma deceleration in subcritical X-ray pulsars