Browsing by Author "Middleton, Matthew"

Now showing items 1-2 of 2

    • Orbital Decay in M82 X-2 

      Bachetti, Matteo; Heida, Marianne; Maccarone, Thomas; Huppenkothen, Daniela; Israel, Gian Luca; Barret, Didier; Brightman, Murray; Brumback, McKinley; Earnshaw, Hannah P.; Forster, Karl; Fürst, Felix; Grefenstette, Brian W.; Harrison, Fiona A.; Jaodand, Amruta D.; Madsen, Kristin K.; Middleton, Matthew; Pike, Sean N.; Pilia, Maura; Poutanen, Juri; Stern, Daniel; Tomsick, John A.; Walton, Dominic J.; Webb, Natalie; Wilms, Jörn (2022-10-05)
      M82 X-2 is the first pulsating ultraluminous X-ray source discovered. The luminosity of these extreme pulsars, if isotropic, implies an extreme mass transfer rate. An alternative is to assume a much lower mass transfer ...

    • Return to the Forgotten Ultraluminous X-Ray Source: A Broadband NICER+NuSTAR Study of NGC 4190 ULX-1 

      Earnshaw, Hannah P.; Bachetti, Matteo; Brightman, Murray; Fürst, Felix; Harrison, Fiona A.; Middleton, Matthew; Ludlam, Renee; Pike, Sean N.; Stern, Daniel; Walton, Dominic J. (2024-06-18)
      We observed the nearby and relatively understudied ultraluminous X-ray source (ULX) NGC 4190 ULX-1 jointly with Neutron Star Interior Composition Explorer (NICER) and NuSTAR to investigate its broadband spectrum, timing ...