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The late-type stellar density profile in the Galactic Center: A statistical approach

  • Author(s): Chappell, SN
  • Ghez, AM
  • Do, T
  • Martinez, GD
  • Yelda, S
  • Sitarski, BN
  • Lu, JR
  • Morris, MR
  • et al.
Abstract

The late-type stellar population in the Galactic Center was first predicted to reside in a dynamically relaxed cusp (power law slope ranging from 3/2 to 7/4). However, other works - which rely on models to correct for projection effects - have suggested a flat distribution instead. The need for this correction is due to the lack of information regarding the line-of-sight distances. With a two decade long baseline in astrometric measurements, we are now able to measure significant projected radial accelerations, six of which are newly reported here, which directly constrain line-of-sight distances. Here we present a statistical approach to take advantage of this information and more accurately constrain the shape of the radial density profile of the late-type stellar population in the Galactic Center.

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