Dark impact and galactic star formation: origin of the Gould belt

  title={Dark impact and galactic star formation: origin of the Gould belt},
  author={Kenji Bekki},
  journal={Monthly Notices of the Royal Astronomical Society: Letters},
  • K. Bekki
  • Published 28 June 2009
  • Physics
  • Monthly Notices of the Royal Astronomical Society: Letters
The Milky Way has a giant stellar structure in the solar neighbourhood, which has a size of ∼1 kpc, a mass of ∼106 M⊙ and a ring-like distribution of young stars. Fundamental physical properties of this local enigmatic structure, known as the Gould belt (GB), have not been reproduced by previously proposed models. We first show that the local enigmatic structure could have formed about 30 Myr ago as a result of a high-speed, oblique collision between a gas cloud with a mass of ∼106 M⊙ and a… 

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