Career
She helped show that the activity of black holes in nearby galaxies was greater and more recent than expected. She also worked with others on discoveries concerning stellar activity in distant galaxies. She currently is a professor at the University of Wisconsin–Madison.
Doctor Barger earned a Doctor of Philosophy in Astronomy in 1997 from King"s College, University of Cambridge where she was a Marshall scholar.
Following which she worked on the Morphs collaboration studying the formation and morphologies of distant galaxies.