Globular clusters and dwarf spheroidal galaxies

  title={Globular clusters and dwarf spheroidal galaxies},
  author={Sidney van den Bergh},
  journal={Monthly Notices of the Royal Astronomical Society: Letters},
  • S. Bergh
  • Published 29 November 2007
  • Physics
  • Monthly Notices of the Royal Astronomical Society: Letters
Traditionally, globular clusters and dwarf spheroidal galaxies have been distinguished by using one or more of the following criteria: (i) mass, (ii) luminosity, (iii) size, (iv) mass-to-light ratio and (v) spread in metallicity. However, a few recently discovered objects show some overlap between the domains in parameter space that are occupied by galaxies and clusters. In this Letter, it is shown that ellipticity can, in some cases, be used to help distinguish between globular clusters and… 

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