Federal prosecutors are arguing that Catherine Greig, the girlfriend of James “Whitey’’ Bulger, should serve 10 years in prison for helping the notorious gangster stay on the lam for 16 years, an indication that they will show no sympathy when she is sentenced on Tuesday.

Under the government’s proposed sentence, Greig, 61, would also have to pay a $150,000 fine and serve three years of probation following her release from prison.