Astrophysics and Space Science

, Volume 123, Issue 2, pp 297–303

On the detectability of antimatter propulsion spacecraft

  • Michael J. Harris

DOI: 10.1007/BF00653949

Cite this article as:
Harris, M.J. Astrophys Space Sci (1986) 123: 297. doi:10.1007/BF00653949


It is shown that the NASA Gamma-Ray Observatory will be able to detect large interstellar spacecraft at distances up to ∼ 300 pc by the γ-ray emission from the propulsion system alone. The distance limit is set by the possibility of recognizing such objects by their proper motions.

Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • Michael J. Harris
    • 1
  1. 1.Department of AstronomyUniversity of TexasAustinU.S.A.

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