Absolute zero for the boomerang nebula?

AI Thread Summary
The Boomerang Nebula is noted for its extreme cold, with temperatures around 1 degree Kelvin, attributed to its rapid expansion. This expansion causes a significant drop in temperature, similar to the cooling effect observed in gases like Freon when they expand. The discussion raises the possibility that such low temperatures could allow for the formation of Bose-Einstein Condensates in space, depending on the elements involved. Helium, for instance, degrades at approximately 2.17 Kelvin, suggesting that the Boomerang Nebula could be a candidate for this state. The conversation highlights the intriguing potential for unique physical phenomena in extreme cosmic environments.
wolram
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hi, can anyone confirm the 1degree above absolute zero for the
boomerang nebula?
 
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Originally posted by wolram
hi, can anyone confirm the 1degree above absolute zero for the
boomerang nebula?
It would be similar to the Freon (sp?) in your AC system, or any expanding gasses which, as you know, drop in temperature when moving from a compressed state to a less compressed state. Just like the AC in your house or car, or even the fire extinguisher.

This is not a "confirmation", but the Boomerang nebula, a planetary nebula, is found to be expanding at a rapid rate that is 10 to 100 times faster than other known planetary nebula. This rapid expansion equals a fast drop in temperature, enough to be at just ~1 degree K.
 
thanks LABGUY, straying from the origonal question, if you can have
a 1k nebula is it going to far to say that there may be bose einstein
condition in space?
 
Originally posted by wolram
thanks LABGUY, straying from the origonal question, if you can have
a 1k nebula is it going to far to say that there may be bose einstein
condition in space?
It could be. Helium will "degrade" at about 2.17*K, and Sodium took it down to 1 millionth *K in the MIT laser experiment. I guess it totally depends on the element, and temperature of course, but that 1*K nebula should certainly apply as a candidate for a Bose-Einstein Condensate for certain elements... (?)
 
thanks once more labguy, the posibilities get more interesting...
 
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