On the local birth place of Geminga

  title={On the local birth place of Geminga},
  author={Leonardo J. Pellizza and R. P. Mignani and Isabelle A. Grenier and Igor Felix Mirabel},
  journal={Astronomy and Astrophysics},
Using estimates of the distance and proper motion of Geminga and the constraints on its radial velocity posed by the shape of its bow shock, we investigate its birth place by tracing its space motion backwards in time. Our results exclude the λ Ori association as the origin site because of the large distance between both objects at any time. Our simulations place the birth region at approximately 90–240 pc from the Sun, between $197\degr$ and $199\degr$ in Galactic longitude and $-16\degr$ and… 

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