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Comparing Various Approaches to Simulating the Formation of Shell Galaxies

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 نشر من قبل Ivana Ebrova
 تاريخ النشر 2011
  مجال البحث فيزياء
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The model of a radial minor merger proposed by Quinn (1984), which successfully reproduces the observed regular shell systems in shell galaxies, is ideal for a test-particle simulation. We compare such a simulation with a self-consistent one. They agree very well in positions of the first generation of shells but potentially important effects -- dynamical friction and gradual decay of the dwarf galaxy -- are not present in the test-particle model, therefore we look for a proper way to include them.



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