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OBSERVING 'WEATHER' ON BROWN DWARFS (Other than Gary Coleman)
UPI Science Desk ^ | July 23, 2002

Posted on 07/23/2002 2:37:25 PM PDT by gcruse

 

OBSERVING 'WEATHER' ON BROWN DWARFS

Brown dwarfs, which have been described as "failed stars," are celestial bodies more massive than planets like Jupiter but not large enough to sustain the nuclear reactions that make stars shine. Researchers at Washington University in St. Louis report brown dwarfs may have something else in common with Jupiter -- changing weather patterns. Although brown dwarfs do not have conventional atmospheres, they do exhibit conditions on their surfaces that resemble fog and clouds, but made up of a form of liquid iron. Analyzing data from several brown dwarfs, researchers found evidence the objects undergo sort of a change from "clear" to "cloudy."

They theorize heating and cooling of brown dwarfs create the same dynamics that cause the atmospheric weather patterns on Jupiter. On the dwarfs, the "storms" might sweep the iron clouds aside periodically, allowing infrared light trapped below to escape. This might explain the bizarre "brightening" effect sometimes observed in the dwarfs as they age.


TOPICS: Astronomy; Science
KEYWORDS:

1 posted on 07/23/2002 2:37:26 PM PDT by gcruse
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To: gcruse

I think you may be on to something, Herr docktor.

2 posted on 07/23/2002 4:48:20 PM PDT by Cagey
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To: Cagey
Hmmmm.
3 posted on 07/23/2002 4:53:41 PM PDT by gcruse
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To: gcruse
OBSERVING 'WEATHER' ON BROWN DWARFS (Other than Gary Coleman)

> snicker! <

4 posted on 07/23/2002 9:32:17 PM PDT by martin_fierro
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To: martin_fierro
Heh.  Couldn't resist.
5 posted on 07/23/2002 9:36:41 PM PDT by gcruse
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To: gcruse
Do Brown Dwarfs die in the same manner as stars... do they collapse, and if so, what do they collapse into... black hole, neutron star...???
6 posted on 07/24/2002 8:00:18 AM PDT by 1bigdictator
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To: 1bigdictator
Brown dwarfs do not die as such. They are failed stars, so there is not stellar nuclear reactions going on inside them that would reach a terminal point. They are like stellar planets, if you will. And a planet doesn't die.
7 posted on 07/24/2002 12:45:03 PM PDT by gcruse
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To: gcruse
they do exhibit conditions on their surfaces that resemble fog and clouds, but made up of a form of liquid iron.
Gee, and I thought the atmosphere in Los Angeles was as bad as it got.
8 posted on 07/24/2002 10:09:31 PM PDT by Looking for Diogenes
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To: gcruse
Do Brown Dwarfs die in the same manner as stars... do they collapse, and if so, what do they collapse into... black hole, neutron star...???

They collapse into brown holes, of course.

9 posted on 07/24/2002 10:12:04 PM PDT by Looking for Diogenes
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To: Looking for Diogenes
 
Gee, and I thought the atmosphere in Los Angeles was as bad as it got.

Bad?  Hey, I ain't breathin' nothin' I can't see!

10 posted on 07/25/2002 9:45:02 AM PDT by gcruse
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To: g'nad
This might explain the bizarre "brightening" effect sometimes observed in the dwarfs as they age.

Old dwarf ping.

11 posted on 07/25/2002 9:51:43 AM PDT by Corin Stormhands
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