Browsing Research publications by Author "Middleton, Matthew J."

Now showing items 1-3 of 3

    • The high energy X-ray probe ( HEX-P ): studying extreme accretion with ultraluminous X-ray sources 

      Bachetti, Matteo; Middleton, Matthew J.; Pinto, Ciro; Gúrpide, Andrés; Walton, Dominic J.; Brightman, Murray; Lehmer, Bret; Roberts, Timothy P.; Vasilopoulos, Georgios; Alford, Jason; Amato, Roberta; Ambrosi, Elena; Dai, Lixin; Earnshaw, Hannah P.; El Byad, Hamza; García, Javier A.; Luca Israel, Gian; Jaodand, Amruta; Madsen, Kristin; Maitra, Chandreyee; Mandel, Shifra; Mori, Kaya; Pintore, Fabio; Ohsuga, Ken; Pilia, Maura; Stern, Daniel; Younes, George; Wolter, Anna (2023-11-27)
      Introduction: Ultraluminous X-ray sources (ULXs) represent an extreme class of accreting compact objects: from the identification of some of the accretors as neutron stars to the detection of powerful winds travelling at ...

    • A New Sample of Transient Ultraluminous X-Ray Sources Serendipitously Discovered by Swift/XRT 

      Brightman, Murray; Hameury, Jean-Marie; Lasota, Jean-Pierre; Baldi, Ranieri D.; Bruni, Gabriele; Cann, Jenna M.; Earnshaw, Hannah; Fürst, Felix; Heida, Marianne; Jaodand, Amruta; Lazzarini, Margaret; Middleton, Matthew J.; Walton, Dominic J.; Weaver, Kimberly A. (2023-07-03)
      Ultraluminous X-ray sources (ULXs) are our best laboratories for studying extreme super-Eddington accretion. Most studies of these objects are of relatively persistent sources; however, there is growing evidence to suggest ...

    • The Variability Behavior of NGC 925 ULX-3 

      Earnshaw, Hannah P.; Brightman, Murray; Harrison, Fiona A.; Heida, Marianne; Jaodand, Amruta; Middleton, Matthew J.; Roberts, Timothy P.; Walton, Dominic J. (2022-07-25)
      We report the results of a 2019–2021 monitoring campaign with Swift and associated target-of-opportunity observations with XMM-Newton and NuSTAR, examining the spectral and timing behavior of the highly variable ultraluminous ...