arXiv 0908.14292009-08astro-ph.COhep-ph

暗物质作为未来火箭技术可能的新能源

Dark Matter as a Possible New Energy Source for Future Rocket Technology

Jia Liu

备注：: 7 pages, 6 figures; v2, minor correction, add the discussion in annihilation speed

摘要：

目前的火箭技术还不能把宇宙飞船送得很远，因为它所能携带的化学燃料量是有限的。我们试图用暗物质（DM）作为燃料来解决这个问题。在这项工作中，我们给出了一个使用暗物质湮灭产物作为推进剂的DM发动机的例子。加速度与速度成正比，在非相对论区域，速度随时间呈指数增长。加速的要点是DM密度有多密集以及饱和区域有多大。飞船的参数也可能对结果有很大的影响。我们证明了（子）晕可以使宇宙飞船加速到速度$ 10^{- 5} c \sim 10^{- 3} c$。而且，万一在晕中有一个中心黑洞，就像银河系中心一样，密集尖峰的半径可以大到足以将宇宙飞船加速到接近光速。

英文摘要：

Current rocket technology can not send the spaceship very far, because the amount of the chemical fuel it can take is limited. We try to use dark matter (DM) as fuel to solve this problem. In this work, we give an example of DM engine using dark matter annihilation products as propulsion. The acceleration is proportional to the velocity, which makes the velocity increase exponentially with time in non-relativistic region. The important points for the acceleration are how dense is the DM density and how large is the saturation region. The parameters of the spaceship may also have great influence on the results. We show that the (sub)halos can accelerate the spaceship to velocity $ 10^{- 5} c \sim 10^{- 3} c$. Moreover, in case there is a central black hole in the halo, like the galactic center, the radius of the dense spike can be large enough to accelerate the spaceship close to the speed of light.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

摘要：

英文摘要：

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