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Old 03-27-2014, 08:53 PM   #37
Fred Brackin
 
Join Date: Aug 2007
Default Re: [IW] Imagining Lucifer-3

Quote:
Originally Posted by malloyd View Post
In any case, as geologic things go, the Local Bubble is not particularly old, no more than a few 10s of millions of years. it .
The estimate I have for the Geminga pulsar is only 30,000 years.

Any relatively close neutron star binary ought to be a known x-ray source.
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