Thread: Einstein Cross - why not a ring?
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Old 23-09-2009, 09:51 PM
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Robh (Rob)
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The foreground mass that does the lensing does not have to be spherical to form a ring.
See ...
http://hubblesite.org/newscenter/arc...eases/2008/04/

Rob
Last edited by Robh; 23-09-2009 at 10:13 PM.
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