I'm a government researcher in R&D and have spent my career doing and publishing my own work. Some time ago I was asked to take over some research from another scientist that was being transferred. She barely started the work and all I ended up receiving were some rough notes for background info - no actual analysis. I told her that since it was her project at the start, I would add her name to the publication as a co-author.
I have since spent several months doing the research and analysis and am ready to submit the publication. Since I did promise her to add her name, I did so fully expecting her to tell me to remove it since all the work was really mine - I didn't even use her notes. All she did was thank me for adding it.
I guess I'm disappointed in her decision to keep her name on the publication. Is that unethical on her part?