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astro-ph.HE2025
Delayed Launch of Ultrafast Outflows in the Tidal Disruption Event AT2020afhd
Zikun Lin, Yanan Wang, De-Fu Bu +2
We report the detection and characterization of ultrafast outflows (UFOs) in the X-ray spectra of the tidal disruption event (TDE) AT2020afhd, based on observations from NICER, Swi…
physics.atom-ph2025
UK APAP R-matrix electron-impact excitation cross-sections for modelling laboratory and astrophysical plasma
G. Del Zanna, G. Liang, J. Mao +1
Systematic R-matrix calculations of electron-impact excitation for ions of astrophysical interest have been performed since 2007 for many iso-electronic sequences as part of the UK…