A tale of two galaxies: light and mass in NGC 891 and NGC 7814

  title={A tale of two galaxies: light and mass in NGC 891 and NGC 7814},
  author={F. Fraternali and Renzo Sancisi and Peter Kamphuis},
  journal={Astronomy and Astrophysics},
  • F. Fraternali, Renzo Sancisi, Peter Kamphuis
  • Published 2011
  • Physics
  • Astronomy and Astrophysics
  • The two edge-on galaxies NGC 891 and NGC 7814 are representative of two extreme morphologies: the former is disk-dominated while the latter is almost entirely bulge-dominated. It has been argued that since the two galaxies, which are optically so different, have similar rotation curves their total mass distributions cannot be related in any way to the light distributions. This would lead to the conclusion that dark matter is the dominating component of the mass. We have derived new rotation… CONTINUE READING

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