Burkhard Fuchs and Christian Dettbarn 2011 The Astronomical Journal 141 5 doi:10.1088/0004-6256/141/1/5
Burkhard Fuchs and Christian Dettbarn
Show affiliationsWe have studied the fine structure of the phase space distribution of white dwarfs in the solar neighborhood. White dwarfs have kinematics that are typical for the stellar population of the old thin disk of the Milky Way. Using a projection of the space velocities of stars onto vertical angular momentum components and eccentricities of the stellar orbits we demonstrate that stellar streams can be identified in the phase space distribution of the white dwarfs. These correspond to the well-known Sirius, Pleiades, and Hercules star streams. Membership of white dwarfs, which represent the oldest population in the Galaxy, in these streams lends support to the interpretation that the streams owe their existence to dynamical resonance effects of the stars with Galactic spiral arms or the Galactic bar, because these indiscriminately affect all stellar populations.
Issue 1 (2011 January)
Received 2010 May 14, accepted for publication 2010 October 13
Published 2010 December 7
Burkhard Fuchs and Christian Dettbarn 2011 The Astronomical Journal 141 5
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