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20242026
most citedSimultaneous NICER and NuSTAR observations of the Ultraluminous source NGC 4190 ULX-1

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astro-ph.HE2025

The hard ultraluminous state of NGC 5055 ULX X-1

N. Cruz-Sanchez, E. A. Saavedra, F. A. Fogantini +2

We present the results of the first broadband X-ray analysis of the ultraluminous X-ray source NGC 5055 ULX X-1, combining simultaneous data from XMMNewton and NuSTAR missions,…