I myself am not published, but I always figured I'd set up my real name as a separate LJ just for publication news, if the happy day of publication ever came.

I do know that rachelcaine maintains a separate fandom identity (juliefortune), and has written and published Stargate books under her fandom identity. But it's not a secret, and Rachel Caine is also a pseudonym.

Because you've never kept your real name secret, and because you don't have a pile of fandom-wank scandal to worry about, I don't see a reason to hide your fandom background. Heck, I think my husband has a Doctor Who novel around here somewhere that lists Rebecca J. Anderson in the thanks and acknowledgements. :)