Accretion of helium and metal-rich gas onto neutron stars and black holes at high luminosities

J. Dunkel, J. Chluba, R. A. Sunyaev

Ultraluminous X-ray sources fed by Wolf-Rayet star winds and X-ray bursters in ultracompact binaries with He or C white dwarfs have accretion disks, whose properties may significan…