The high energy X-ray probe (HEX-P): studying extreme accretion with ultraluminous X-ray sources
The high energy X-ray probe (HEX-P): studying extreme accretion with ultraluminous X-ray sources
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 0.1-0.2 c, the increasing evidence points towards ULXs harbouring stellar-mass compact objects undergoing highly super-Eddington accretion. Measuring their intrinsic …