2 papers
astro-ph.HE2025
Modeling X-ray photon pile-up with a normalizing flow
Ole König, Daniela Huppenkothen, Douglas Finkbeiner +5
The dynamic range of imaging detectors flown on-board X-ray observatories often only covers a limited flux range of extrasolar X-ray sources. The analysis of bright X-ray sources i…
astro-ph.HE2025
A hidden quasi-periodic oscillation in Cygnus X-1 revealed by NICER
Federico A. Fogantini, Federico GarcÃa, Mariano Méndez +2
Cygnus X-1 is a high-mass black hole binary extensively studied since its discovery in 1964. Its rapid X-ray variability provides insights into accretion physics. Unlike other blac…