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Resolving a Clumpy Disk Wind in 4U 1957+115 with XRISM

Draghis, Paul A. et al.
arXiv (All) · Papers
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high-energy-astrophysical-phenomena
We present a high-resolution XRISM/Resolve observation of the persistent black hole candidate 4U 1957+115, revealing the first detection of an intrinsic disk wind in this source. The absorption is dominated by highly ionized Fe XXV and Fe XXVI and varies substantially throughout the observation, bec
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