our stellar cousins
Nov. 22nd, 2007 10:21 amI started off the day reading this interesting article about the discovery of "carbon stars"--ancient white dwarfs with atmospheres almost entirely composed of carbon. They're rare, and they challenge our understanding of stellar evolution, and they're bound to end up in a space opera novel before long.
"The great mystery is why these carbon-atmosphere stars are found only between about 18,000 degrees and 23,000 degrees Kelvin. 'These stars are too hot to be explained by the standard convective dredge-up scenario, so there must be another explanation,' Dufour said."
The explanation, of course, is that they're alive.
"The great mystery is why these carbon-atmosphere stars are found only between about 18,000 degrees and 23,000 degrees Kelvin. 'These stars are too hot to be explained by the standard convective dredge-up scenario, so there must be another explanation,' Dufour said."
The explanation, of course, is that they're alive.
no subject
Date: 2007-11-22 12:14 am (UTC)Of course they are! Active "hot" carbon superstructures.
They're late model Matrioshka Brains (http://en.wikipedia.org/wiki/Matrioshka_brain) running on hot cycle systems.
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Date: 2007-11-22 12:24 am (UTC)no subject
Date: 2007-11-22 12:23 am (UTC)But why? What would need to operate at those temperatures? I guess it's time to start looking at what's orbiting them...
After all, they're too small and too hot to be Dyson spheres, even loose ones like Matrioshkas...
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Date: 2007-11-22 12:27 am (UTC)Maybe the stars are stellar graveyards, where they've dumped all their organic crap.
What could a carbon star provide an advanced civilisation that an ordinary white dwarf couldn't?
Maybe they're furnaces for buckyballs and nanotubes by the gazillions.
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Date: 2007-11-22 05:52 pm (UTC)no subject
Date: 2007-11-22 09:34 pm (UTC)I love this idea. It almost makes global warming seem, well, cool.
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Date: 2007-11-22 09:35 pm (UTC)