Feasibility of Detecting Interstellar Panspermia in Astrophysical Environments

  title={Feasibility of Detecting Interstellar Panspermia in Astrophysical Environments},
  author={Claudio Grimaldi and Manasvi Lingam and Amedeo Balbi},
  journal={The Astronomical Journal},
The proposition that life can spread from one planetary system to another (interstellar panspermia) has a long history, but this hypothesis is difficult to test through observations. We develop a mathematical model that takes parameters such as the microbial survival lifetime, the stellar velocity dispersion, and the dispersion of ejecta into account in order to assess the prospects for detecting interstellar panspermia. We show that the correlations between pairs of life-bearing planetary… 
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