AbstractBy definition Kardashev-type civilizations, after learning to manage the energy of the star, can conquer large parts of the galaxy. Is this possible at all? In the present paper several types of interstellar flights are considered with different velocities v, different types of fuel: chemical, fission nuclear fuel, fusion nuclear fuel and antimatter fuel. The flight parameters for different exhaust velocities u measured relative to the center of mass of the interstellar rocket are also discussed. For thermal (chemical) propulsion , for ion (nuclear) propulsion and for the photon (matter-antimatter annihilation) propulsion .The following more advanced interstellar trips are analysed: (a) to the center of our Galaxy, Xa = 30.000 light years (l.y.). (b) to the nearest neighbouring galaxy Andromeda, Xb = 2.3 × 106 l.y., (c) to the frontiers of the visibility of the largest optical telescope, xc = 5 × 109 l.y.It follows from the above analysis that the realization of interstellar flights in one-step rocket is very improbable even to the nearest stars during the time comparable to the human life-time and even by the much more advanced civilization than that of our own.
On some time, mass, energy and power characteristics of the interstellar flights in a one-step rocket
Can the kardashev-type of civilizations exist?
Acta Astronautica ; 11 , 10-11 ; 679-686
1984-03-06
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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