Now showing items 1-5 of 5

    • The Angular Momentum of Magnetized Molecular Cloud Cores: A Two-Dimensional-Three-Dimensional Comparison 

      Dib, Sami; Hennebelle, Patrick; Pineda, Jaime E.; Csengeri, Timea; Bontemps, Sylvain; Audit, Edouard; Goodman, Alyssa (Institute of Physics Publishing, Inc., 2010)
      In this work, we present a detailed study of the rotational properties of magnetized and self-gravitating dense molecular cloud cores formed in a set of two very high resolution three-dimensional molecular cloud simulations ...
    • Asymptotic Symmetries and Charges in De Sitter Space 

      Anninos, Dionysios; Ng, Gim Seng; Strominger, Andrew E. (Institute of Physics Publishing, 2011)
      The asymptotic symmetry group (ASG) at future null infinity \((I^+)\) of four-dimensional de Sitter spacetimes is defined and shown to be given by the group of three-dimensional diffeomorphisms acting on \(I^+\). Finite ...
    • Candidates for Inelastic Dark Matter 

      Cui, Yanou; Morrissey, David; Poland, David; Randall, Lisa (Springer, 2009)
      Although we have yet to determine whether the DAMA data represents a true discovery of new physics, among such interpretations inelastic dark matter (IDM) can match the energy spectrum of DAMA very well while not contradicting ...
    • The Dynamics of Dense Cores in the Perseus Molecular Cloud II: the Relationship between Dense Cores and the Cloud 

      Kirk, Helen; Pineda, Jaime E.; Johnstone, Doug; Goodman, Alyssa (Institute of Physics Publishing, Inc., 2010)
      We utilize the extensive datasets available for the Perseus molecular cloud to analyze the relationship between the kinematics of small-scale dense cores and the larger structures in which they are embedded. The kinematic ...
    • Extremal Limits and Black Hole Entropy 

      Carroll, Sean; Johnson, Matthew; Randall, Lisa (Springer, 2009)
      Taking the extremal limit of a non-extremal Reissner-Nordstrom black hole (by externally varying the mass or charge), the region between the inner and outer event horizons experiences an interesting fate--while this region ...