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Sub-Solar Systems ?



 
 
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  #1  
Old February 20th 07, 05:21 PM posted to sci.astro
jimhigh66
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Default Sub-Solar Systems ?

(I've never heard this discussed.)
Could systems form where the center mass is insufficient to start a
nuclear reaction? If so any idea how prevalent they might be? Have any
such systems ever been observed (by infrared emissions or a pecular
spectra)? Might they be part of "dark matter" ? Jim H.

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  #2  
Old February 20th 07, 06:30 PM posted to sci.astro
Gautam Majumdar[_2_]
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Default Sub-Solar Systems ?

On Tue, 20 Feb 2007 17:21:22 +0000, jimhigh66 wrote:

(I've never heard this discussed.)
Could systems form where the center mass is insufficient to start a
nuclear reaction? If so any idea how prevalent they might be? Have any
such systems ever been observed (by infrared emissions or a pecular
spectra)? Might they be part of "dark matter" ? Jim H.


If you are thinking of a brown dwarf with a planetary system, see
Sincell M, Science 2001, 292: 1984-85. Protoplanetary disk has been
discovered around brown dwarfs.

--
gautam
  #3  
Old February 21st 07, 06:55 PM posted to sci.astro
jimhigh66
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Default Sub-Solar Systems ?

Tnx. Ah yes, googling "brown dwarf" yields considerable information.

 




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