articleThe Astronomical JournalNov 19, 2008BRONZE OA

HIGH-RESOLUTION ROTATION CURVES AND GALAXY MASS MODELS FROM THINGS

WJW. J. G. de BlokFWF. WalterEBE. BrinksCTC. TrachternachSOS-H. Oh
Indexed inarxivcrossrefdoaj

Abstract

We present rotation curves of 19 galaxies from The H I Nearby Galaxy Survey (THINGS). The high spatial and velocity resolution of THINGS make these the highest quality H I rotation curves available to date for a large sample of nearby galaxies, spanning a wide range of H I masses and luminosities. The high quality of the data allows us to derive the geometric and dynamical parameters using H I data alone. We do not find any declining rotation curves unambiguously associated with a cut-off in the mass distribution out to the last measured point. The rotation curves are combined with 3.6 μm data from the Spitzer Infrared Nearby Galaxies Survey to construct mass models. Our best-fit dynamical disk masses, derived…

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Authors

6
  • WJ
    W. J. G. de BlokCorresponding
  • FW
    F. Walter
  • EB
    E. Brinks
  • CT
    C. Trachternach
  • SO
    S-H. Oh

Topics & keywords

Topics
Keywords
  • Galaxy rotation curve
  • Galaxy
  • Rotation (mathematics)
  • Light curve
  • Cosmology
  • Computational astrophysics
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