4U 1556-60 as a very faint neutron star X-ray binary at 700 pc with an undetected radio jet

Eliot C. Pattie, Thomas J. Maccarone, Thomas Russell +3

4U 1556-60 is a low-mass X-ray binary that was discovered more than 50 years ago as a persistent X-ray source; however, very little was known about it. Recently, Gaia obtained a pa…