Self‐consistent Models of Cuspy Triaxial Galaxies with Dark Matter Halos

We have constructed realistic, self-consistent models of triaxial ellipticalgalaxies embedded in triaxial dark matter haloes. We examined three differentmodels for the shape of the dark matter halo: (i) the same axis ratios as theluminous matter (0.7:0.86:1); (ii) a more prolate shape (0.5:0.66:1); (iii) amore oblate shape (0.7:0.93:1). The models were obtained by means of thestandard orbital superposition technique introduced by Schwarzschild.Self-consistent solutions were found in each of the three cases. Chaotic orbitswere found to be important in all of the models,and their presence was shown toimply a possible slow evolution of the shapes of the haloes. Our resultsdemonstrate for the first time that triaxial dark matter haloes can co-existwith triaxial galaxies.Comment: Latex paper based on the AASTEX format, 20 pages, 11 figures, 2 tables. Paper submitted to Ap