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The connection between merging double compact objects and the Ultraluminous X-ray Sources
Samaresh Mondal, Krzysztof Belczyński, Grzegorz Wiktorowicz +2
We explore the different formation channels of merging double compact objects (DCOs: BH-BH/BH-NS/NS-NS) that went through a ultraluminous X-ray phase (ULX: X-ray sources with appar…
Populations of stellar mass Black holes from binary systems
Grzegorz Wiktorowicz, Łukasz Wyrzykowski, Martyna Chruslinska +3
In large and complicated stellar systems like galaxies it is difficult to predict the number and characteristics of a black hole population. Such populations may be modelled as an…
CG X-1: an eclipsing Wolf-Rayet ULX in the Circinus galaxy
Yanli Qiu, Roberto Soria, Song Wang +7
We investigated the time-variability and spectral properties of the eclipsing X-ray source Circinus Galaxy X-1 (GG X-1), using Chandra, XMM-Newton and ROSAT. We phase-connected the…