A Journey to the Stars: Space Propulsion Brought About by Astrophysical Phenomena Such as Accretion Disk and Astrophysical JetYoshinari Minami*
Advanced Science-Technology Research Organization, Formerly NEC Space Development Division, Japan
- *Corresponding Author:
- Yoshinari Minami
Advanced Science-Technology Research Organization
Formerly NEC Space Development Division
E-mail: [email protected]
Received date: July 04, 2016; Accepted date: July 27, 2016; Published date: August 04, 2016
Citation: Minami Y (2016) A Journey to the Stars: Space Propulsion Brought About by Astrophysical Phenomena Such as Accretion Disk and Astrophysical Jet. Global J Technol Optim 7: 197. doi:10.4172/2229-8711.1000197
Copyright: © 2016 Minami Y. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
At the present stage of space propulsion technology, the only practical propulsion system is chemical propulsion system and electric propulsion system, which are based on expulsion of a mass to induce a momentum thrust. Since the maximum speed is limited by the product of the gas effective exhaust velocity and the natural logarithm of mass ratio, its speed is too slow for the spaceship to achieve the interplanetary travel and interstellar travel. Thus the breakthrough of propulsion method has been required until now. Field propulsion systems, which are based on the General Relativity Theory, the Quantum Field Theory and other exotic theories, have been proposed to overcome the speed limit of the conventional space rocket, instead of conventional chemical propulsion systems.