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Would they still be detectable? Or could they capture enough energy that the stars would be barely noticeable, like trying to find a brown dwarf?
by JauntTrooper 6y ago
Would they still be detectable? Or could they capture enough energy that the stars would be barely noticeable, like trying to find a brown dwarf?
- saberdancer 6y agoI followed Tabby's Star news for a while (star that showed massive dips, speculation was that it is a dyson sphere being built). Most scientists believe that even if the star is encased in Dyson sphere that there would be excess infrared emissions as the sphere would need to vent heat. It would be hotter than surrounding space and thus visible. They are thus trying to detect such stars with higher mass and IR excess than expected, but so far there are not many candidates.
- garmaine 6y agoYou cannot simply absorb all the energy of the star and never emit it. The waste heat has to go somewhere. An efficient Dyson sphere would still emit lower energy infrared radiation in a way that would be detectable from out space-based observatories.