Browsing by Author "Kretschmar, P."

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    • Long-term pulse period evolution of the ultra-luminous X-ray pulsar NGC 7793 P13 

      Fuerst, F.; Walton, D. J.; Heida, M.; Bachetti, M.; Pinto, C.; Middleton, M. J.; Brightman, M.; Earnshaw, H. P.; Barret, D.; Fabian, A. C.; Kretschmar, P.; Pottschmidt, K.; Ptak, A.; Roberts, T.; Stern, D.; Webb, N.; Wilms, J. (2021-07-16)
      Ultra-luminous X-ray pulsars (ULXPs) provide a unique opportunity to study super-Eddington accretion. We present the results of a monitoring campaign of ULXP NGC 7793 P13. Over our four-year monitoring campaign with Swift, ...