Talcott, Richard
January 2005
Astronomy;Jan2005, Vol. 33 Issue 1, p46
The article discusses how astronomers discovered a star with only about t/loo.ooo the amount of heavy elements found in the Sun--some 20 times less than any star analyzed before in 2002. The star, HE 0107-5240, turned up in a survey that looked specifically for stars with a low metal abundance. The star has 80 percent of the Sun's mass--small enough that it could have survived since the birth of the cosmos. That makes it the best candidate for a second generation star, born from debris strewn in the supernova of a first generation star. The spectrum shows surprisingly high amounts of carbon, nitrogen, and oxygen.


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