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I was confused by that statement and the sibling comment that a Dyson swarm would block visible light but not IR and Tabby's star seems to dim in IR. So is it d
by intrepidhero 5y ago
I was confused by that statement and the sibling comment that a Dyson swarm would block visible light but not IR and Tabby's star seems to dim in IR. So is it dimming all wavelengths or not? Is it dimming some visible (but not all) and IR?
- marcosdumay 5y ago> would block visible light but not IR It would not block some spectrum of IR, probably at the far IR region. Compared to a star, it should probably emit much less near visible IR. It depends on what temperature the aliens prefer, but I wouldn't expect anything similar to a star's emissions. Anyway, there exist telescopes tuned to far IR. I don't know what kind was used on that observation.
- MattPalmer1086 5y agoIt's not that it wouldn't block IR from the star. It's that they would radiate waste heat as IR.