Galactic Panspermia.

  title={Galactic Panspermia.},
  author={I. Ginsburg and Manasvi Lingam and A. Loeb},
  journal={arXiv: Earth and Planetary Astrophysics},
  • I. Ginsburg, Manasvi Lingam, A. Loeb
  • Published 2018
  • Physics
  • arXiv: Earth and Planetary Astrophysics
  • We present an analytic model to estimate the total number of rocky or icy objects that could be captured by planetary systems within the Milky Way galaxy and result in panspermia should they harbor life. We estimate the capture rate of objects ejected from planetary systems over the entire phase space as well as time. Our final expression for the capture rate depends upon the velocity dispersion as well as the characteristic biological survival time and the size of the captured object. We… CONTINUE READING

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