As much as I don't want to flood this thread with names, I have to say that as cool a name as Argonaut is, I feel a more, for lack of a better word, "intense" name should be used for this ship but not as off sounding as Coercion (not that Coercion is bad or anything like that).
I like the name U.S.S. Relentless. It sounds to me like it won't stop no matter how intense the battle or adversaries happen to be. And it won't stop for the pursuit of expanding the knowledge of space exploration and seeking out new civilizations....