32,103 followers
XMM-Newton Observations of NGC 247: X-Ray Population and a Supersoft Ultraluminous X-Ray Source: We r... http://bit.ly/nyiv6y #astronomy
XMM-Newton Observations of NGC 247: X-Ray Population and a Supersoft Ultraluminous X-Ray Source: We r... http://bit.ly/nyiv6y #astronomy