The Rotation Velocity Attributable to Dark Matter at Intermediate Radii in Disk Galaxies

  title={The Rotation Velocity Attributable to Dark Matter at Intermediate Radii in Disk Galaxies},
  author={Stacy S. McGaugh and W. J. G. de Blok and James M. Schombert and Rachel Kuzio de Naray and J H Kim},
  journal={The Astrophysical Journal},
  pages={149 - 161}
We examine the amplitude of the rotation velocity that can be attributed to the dark matter halos of disk galaxies, focusing on well-measured intermediate radii. The data for 60 galaxies spanning a large range of mass and Hubble types, taken together, are consistent with a dark halo velocity log Vh = 𝒞 + ℬ log R with 𝒞 = 1.47 and ℬ ≈ over the range of 1 < R < 74 kpc. The range in 𝒞 stems from different choices of the stellar mass estimator, from minimum to maximum disk. For all plausible… 
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  • T. S. van Albada, R. Sancisi
  • Physics
    Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
  • 1986
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