Sleeping Neutron Star Roars Back to Life: What This Tlares Reveals About Supercritical Accretion
Автор: linh hey
Загружено: 2025-12-14
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Astronomers monitor a sleeping neutron star in NGC 7793 P13 as it wakes and brightens dramatically. Using data from XMM-Newton, Chandra, NuSTAR, and NICER, researchers traced a 10-year cycle in X-ray luminosity and a rapid change in the star’s spin acceleration. The study links luminosity to rotation speed and suggests the accretion column height changes during rebrightening, offering clues to the elusive mechanism of supercritical accretion. If you’re curious about extreme gravity, neutron stars, and how gas drifts onto these cosmic beacons to power dazzling X-rays, this video breaks down the key findings and what they mean for our understanding of ultraluminous sources. Topics include accretion physics, pulsations, and how long-term monitoring reveals the life of a neutron star under supercritical accretion.
Keywords: neutron star, supercritical accretion, X-ray astronomy, accretion column, pulsations, X-ray luminosity, NICER, NuSTAR, XMM-Newton, Chandra, NGC 7793 P13, X-ray binaries, astrophysics
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