Brendan McMonigal, Geraint F. Lewis, and Philip O'Byrne The Alcubierre Warp Drive: On the Matter of Matter – see conclusion: "These results suggest that any ship using an Alcubierre warp drive carrying people would need shielding to protect them from potential dangerously blueshifted particles during the journey, and any people at the destination would be gamma ray and high energy particle blasted into oblivion due to the extreme blueshifts for P+ region particles."