CONSTRAINTS AND COST / BENEFITS OF THIN FILM DYSON SPHERES

机译：薄膜戴森球的约束和成本/收益

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Dyson Spheres are hypothetical structures that advanced civilizations can build for habitation purposes that capture and use a significant portion of the output of their star. For sufficiently thin shelled spheres, stellar radiation pressure balances stellar gravitational. Such a structure is a thin film Dyson Sphere or Dyson Bubble. Although not directly habitable, its chief advantage is that it allows a Dyson Habitat Swarm to achieve its full potential within, also allowing additional planets and moons within to become habitable. The primary constraint is the mass of the star the Dyson Bubble surrounds, constraining its power output and its life span on the main sequence. For a particular stellar mass, a Dyson Bubble radius determines its temperature, surface or areal density and its total mass. Areal density and Dyson Bubble temperature have technological implications that can impact the cost of building the structure. Additional benefits include the possibility of beamed interstellar flight, interstellar communications and unprecedented power as a telescope. Overall results show that this form of Dyson Sphere can be built with relatively small amounts of mass compared to conventional Dyson Spheres. These lower costs and ensuing benefits increase the plausibility of such objects existing.

机译：戴森球体是高级文明可以为居住目的而建造的假想结构，它们捕获并利用了其恒星输出的很大一部分。对于足够薄的带壳球体，恒星辐射压力平衡了恒星引力。这种结构是薄膜戴森球或戴森泡。尽管不是直接可居住，但它的主要优点是它可以使戴森栖息地群充分发挥其潜能，还可以使其他行星和卫星变得可居住。主要限制因素是戴森气泡围绕的恒星质量，从而限制了其功率输出及其在主要序列上的寿命。对于特定的恒星质量，戴森气泡半径决定了其温度，表面或面密度及其总质量。面密度和戴森气泡温度具有可能影响建筑结构成本的技术含义。其他好处包括可以进行星际射线飞行，星际通信以及作为望远镜的空前力量。总体结果表明，与传统的戴森球相比，戴森球的这种形式可制造的质量相对较小。这些较低的成本和随之而来的好处增加了此类物体存在的合理性。

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《58th International Astronautical Congress 2007》|2007年|P.13021314|共2页
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Robert L. DeBiase;
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中图分类航天（宇宙航行）;
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CONSTRAINTS AND COST / BENEFITS OF THIN FILM DYSON SPHERES

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