Dielectron production in Au + Au collisions from STAR

We present the systematic study of dielectron production from minimum bias Au + Au collisions at sNN=19.6,39, and 62.4 GeV along with the production from minimum bias Au + Au collisions at 200 GeV for reference. The spectra are compared to simulated hadronic contributions that do not contain ρ-meson contributions. In each comparison, there is an excess in the dielectron yield that is consistent with a medium modified ρ  -meson and shows no dependence on sNN. To further understand the excess, the spectra are compared to the simulated hadronic contributions plus model calculations that include contributions from the medium and ρ-mesons with a broadened spectral function. These comparisons are consistent within uncertainties.