<i>XMM-Newton</i> campaign on the ultraluminous X-ray source NGC 247 ULX-1: outflows
<i>XMM-Newton</i> campaign on the ultraluminous X-ray source NGC 247 ULX-1: outflows
Most ULXs are believed to be powered by super-Eddington accreting neutron stars and, perhaps, black holes. Above the Eddington rate the disc is expected to thicken and to launch powerful winds through radiation pressure. Winds have been recently discovered in several ULXs. However, it is yet unclear whether the thickening …