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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3 Pith papers cite this work. Polarity classification is still indexing.
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astro-ph.HE 3years
2026 3verdicts
UNVERDICTED 3representative citing papers
Variable column density and covering factor of three ionized absorbers in clumpy disk winds explain the X-ray variability in I Zw 1 with stable corona.
A bias-controlled quasar sample of ~2000 objects demonstrates that the X-ray-to-UV luminosity relation remains constant from redshift 0.7 to 5.
citing papers explorer
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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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Strong X-ray Variability of I Zwicky 1: Obscuration from Clumpy Accretion-Disk Winds
Variable column density and covering factor of three ionized absorbers in clumpy disk winds explain the X-ray variability in I Zw 1 with stable corona.
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The X-ray-to-UV relation does not evolve in homogeneous quasar samples
A bias-controlled quasar sample of ~2000 objects demonstrates that the X-ray-to-UV luminosity relation remains constant from redshift 0.7 to 5.