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On the detectability of antimatter propulsion spacecraft |
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| Authors: | Michael J Harris |
| Institution: | (1) Department of Astronomy, University of Texas, Austin, U.S.A. |
| Abstract: | 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  -ray emission from the propulsion system alone. The distance limit is set by the possibility of recognizing such objects by their proper motions. |
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