Search For Nonvirialized Axionic Dark Matter

Cold dark matter in the Milky Way halo may have structure defined by flows with low velocity dispersion. The Axion Dark Matter eXperiment high resolution channel is especially sensitive to axions in such low velocity dispersion flows. Results from a combined power spectra analysis of the high resolution channel axion search are presented along with a discussion of the assumptions underlying such an analysis. We exclude Kim-Shifman-Vainshtein-Zakharov axion dark matter densities of rho greater than or similar to 0.2 GeV/cm(3) and Dine-Fischler-Srednicki-Zhitnitskii densities of rho greater than or similar to 1.4 GeV/cm(3) over a mass range of m(a) = 3.3 mu eV to 3.69 mu eV for models having velocity dispersions of Delta beta less than or similar to 3 x 10(-6).