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Thread: Brown Dwarf accretion

  1. #1 Brown Dwarf accretion 
    Junior Member
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    Let's say there is a brown dwarf star orbiting out in a galaxy somewhere and it's orbit plunges it through a dense and large molecular cloud of hydrogen(and other goodies) where many other stars are being created. Is it possible for the brown dwarf to start to accrete enough mass and hydrogen to ignite fusion in it's core? Is it possible for the other gas densities (centers of mass and new stars within) to slow down the dwarf (deviate its orbit) to spend enough time in this dense cloud to become a true fusion burning star? JUST curious ty
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  2. #2  
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    It is possible.
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  3. #3  
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    While proto-stars and other mass concentrations doubtless would effect the passage of the brown dwarf through the cloud, these should not be necessary for keeping it within the cloud for a sufficient time to accumulate critical mass. These clouds are vast and many light years across. Check out typical cloud sizes on line and apply a reasonable velocity relative to the cloud and work out the transit time yourself, as an interesting exercise.
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  4. #4  
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    That's really cool to think about. Thanks for a little confirmation
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