Litmus test for planets?

Looks like there is a correlation between under-abundance of lithium in sun-like stars and having a planetary system.  

Exoplanets Clue To Sun’s Curious Chemistry

“For almost 10 years we have tried to find out what distinguishes stars with planetary systems from their barren cousins,” says Garik Israelian, lead author of a paper appearing this week in the journal Nature. “We have now found that the amount of lithium in Sun-like stars depends on whether or not they have planets.”

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Published in: on November 12, 2009 at 11:04 pm  Leave a Comment  

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