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射手座は,銀河系におけるスパイラリティと外環の建築家として影響します

Chris W Purcell1, James S Bullock, Erik J Tollerud

  • 1Department of Physics and Astronomy, The University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA. cpurcell@pitt.edu

Nature
|September 17, 2011
PubMed
まとめ

銀河系の渦巻きの腕と棒の構造は,単独で自己生成されたものではないかもしれません. シミュレーションによると,射手座の矮星銀河の衝突は,スパイラルアームや円盤の燃え上がりなど,銀河の形状を大きく左右している.

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