Now showing items 1-3 of 3

  • Dynamical history of the Local Group in ΛCDM 

    Banik, Indranil; Zhao, Hongsheng (2016-06-21) - Journal article
    The positions and velocities of galaxies in the Local Group (LG) measure the gravitational field within it. This is mostly due to the Milky Way (MW) and Andromeda (M31). We constrain their masses using distance and radial ...
  • Dynamical history of the Local Group in ΛCDM II − including external perturbers In 3D 

    Banik, Indranil; Zhao, Hongsheng (2017-05) - Journal article
    We attempt to fit the observed radial velocities (RVs) of ~30 Local Group (LG) galaxies using a 3D dynamical model of it and its immediate environment within the context of the standard cosmological paradigm, ΛCDM. This ...
  • The escape velocity curve of the Milky Way in Modified Newtonian dynamics 

    Banik, Indranil; Zhao, Hongsheng (2018-01) - Journal article
    We determine the escape velocity from the Milky Way (MW) at a range of Galactocentric radii in the context of Modified Newtonian Dynamics (MOND). Due to its non-linear nature, escape is possible if the MW is considered ...