Effects of the Burkert Dark Matter Density Profile on Dwarf Spheroidal Galaxies

POSTER

Abstract

We present a computational model for calculating the motion of stars in Milky Way dwarf spheroidal galaxies (dSphs) using distributions of baryonic and dark matter. We explicitly calculate the motion of nearly ten-thousand stars in a spherically symmetric gravitational potential. We utilize a Burkert dark matter halo and a Hernquist density profile to model the distributions of dark and baryonic matter respectively. From our simulation, we statistically obtain both the line-of-sight bulk velocity dispersion and dispersion profile for “classical” Milky Way dSphs. We compare our data with the observations of Walker et al. and the results presented in Salucci et al. We will also compare our data with the Modified Newtonian Dynamics (MOND) calculations made previously with our simulation in Alexander et al.

Authors

  • Alexander Staron

    Miami University

  • Don Anderson

    Univ of Michigan - Ann Arbor, The University of Texas at Dallas, Ball State University, Department of Physics, Kettering University, Institute of Physics, University of Brasilia, Brazil, Department of Chemistry and Biochemistry, Kettering University, Center for Photovoltaics Innovation and Commercialization (PVIC), Department of Physics and Astronomy, University of Toledo, Univ of Toledo, Department of Physics, Sri Venkateswara University,Tirupati-517 502, Universidad de La Habana, Ohio State Univ - Columbus, Miami University, Physical Therapy, Eastern Michigan University, Physics, Cleveland State University, Youngstown State Univ, Department of Mechanical Engineering, Youngstown State University, Student

  • Don Anderson

    Univ of Michigan - Ann Arbor, The University of Texas at Dallas, Ball State University, Department of Physics, Kettering University, Institute of Physics, University of Brasilia, Brazil, Department of Chemistry and Biochemistry, Kettering University, Center for Photovoltaics Innovation and Commercialization (PVIC), Department of Physics and Astronomy, University of Toledo, Univ of Toledo, Department of Physics, Sri Venkateswara University,Tirupati-517 502, Universidad de La Habana, Ohio State Univ - Columbus, Miami University, Physical Therapy, Eastern Michigan University, Physics, Cleveland State University, Youngstown State Univ, Department of Mechanical Engineering, Youngstown State University, Student

  • Don Anderson

    Univ of Michigan - Ann Arbor, The University of Texas at Dallas, Ball State University, Department of Physics, Kettering University, Institute of Physics, University of Brasilia, Brazil, Department of Chemistry and Biochemistry, Kettering University, Center for Photovoltaics Innovation and Commercialization (PVIC), Department of Physics and Astronomy, University of Toledo, Univ of Toledo, Department of Physics, Sri Venkateswara University,Tirupati-517 502, Universidad de La Habana, Ohio State Univ - Columbus, Miami University, Physical Therapy, Eastern Michigan University, Physics, Cleveland State University, Youngstown State Univ, Department of Mechanical Engineering, Youngstown State University, Student