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A Disk-Originated 329 Day Quasiperiodic Oscillation in the Seyfert 1 Galaxy J1626+5120

Litao Zhu et al 2025 ApJL 992 L13 Optical, ultraviolet, and X-ray observations may provide the key needed to link quasi-periodic oscillations in jets to Lense–Thirring precession of the accretion…

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Kerry Hensley6mo agoen

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Quasar at the Dawn of the Universe “Blinked” for Astronomers have observed the flickering quasar J0439+1634 as it appeared just 850 million years after the Big Bang — one of the earliest such objects

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