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On the search for artificial Dyson-like structures around pulsars
Popular Physics · Submitted 18 May 2015
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim This indicates that the search for infrared ring-like sources close to slowly rotating pulsars seems to be quite promising.
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The abstract, sentence by sentence
Assuming the possibility of existence of a supercivilization we extend the idea of Freeman Dyson considering pulsars instead of stars. It is shown that instead of a spherical shell the supercivilization must use ring-like constructions. We have found that a size of the "ring" should be of the order of $(10^{-4}-10^{-1})$AU with temperature interval $(300-600)$K for relatively slowly rotating pulsars and $(10-350)$AU with temperature interval $(300-700)$K for rapidly spinning neutron stars, respectively. Although for the latter the Dyson construction is unrealistically massive and cannot be considered seriously. Analyzing the stresses in terms of the radiation and wind flows it has been argued that they cannot significantly affect the ring construction. On the other hand, the ring in-plane unstable equilibrium can be restored by the energy which is small compared to the energy extracted from the star. This indicates that the search for infrared ring-like sources close to slowly rotating pulsars seems to be quite promising.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Assuming the possibility of existence of a supercivilization we extend the idea of Freeman Dyson considering pulsars instead of stars. | background 0.53 | 0.45 | 0.04 | hedged possibility 0.60 |
| s1 | It is shown that instead of a spherical shell the supercivilization must use ring-like constructions. | result 0.93 | 0.74 | 0.42 | asserted 1.00 |
| s2 | We have found that a size of the "ring" should be of the order of $(10^{-4}-10^{-1})$AU with temperature interval $(300-600)$K for relatively slowly rotating pulsars and $(10-350)$AU with temperature interval $(300-700)$K for rapidly spinning neutron stars, respectively. | result 1.00 | 0.93 | 0.24 | asserted 1.00 |
| s3 | Although for the latter the Dyson construction is unrealistically massive and cannot be considered seriously. | limitation 0.63 | 0.58 | 0.08 | asserted 0.99 |
| s4 | Analyzing the stresses in terms of the radiation and wind flows it has been argued that they cannot significantly affect the ring construction. | result 0.76 | 0.68 | 0.04 | asserted 0.76 |
| s5 | On the other hand, the ring in-plane unstable equilibrium can be restored by the energy which is small compared to the energy extracted from the star. | result 0.66 | 0.68 | 0.08 | asserted 0.65 |
| s6 | This indicates that the search for infrared ring-like sources close to slowly rotating pulsars seems to be quite promising. | interpretation 0.74 | 0.51 | 0.84 | hedged possibility 0.99 |
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The paper
Original abstract
Assuming the possibility of existence of a supercivilization we extend the idea of Freeman Dyson considering pulsars instead of stars. It is shown that instead of a spherical shell the supercivilization must use ring-like constructions. We have found that a size of the "ring" should be of the order of $(10^{-4}-10^{-1})$AU with temperature interval $(300-600)$K for relatively slowly rotating pulsars and $(10-350)$AU with temperature interval $(300-700)$K for rapidly spinning neutron stars, respectively. Although for the latter the Dyson construction is unrealistically massive and cannot be considered seriously. Analyzing the stresses in terms of the radiation and wind flows it has been argued that they cannot significantly affect the ring construction. On the other hand, the ring in-plane unstable equilibrium can be restored by the energy which is small compared to the energy extracted from the star. This indicates that the search for infrared ring-like sources close to slowly rotating pulsars seems to be quite promising.
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Such “Dyson Spheres” are not only a staple of science fiction, but have also been the target of many astrophysical searches and other scientific investigations [ref] .
Life Versus Dark Energy: How An Advanced Civilization Could Resist the Accelerating Expansion of the Universe · Introduction · 0.91
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