Studying the Night Sky

Department of Physics | July 2, 2015 


Determining the chemical abundance pattern left by the earliest stars in the universe is no easy feat. A Lawrence Livermore National Laboratory (LLNL) scientist is helping to do just that.

The first stars in the universe formed about 400 million years after the Big Bang (estimated at 13.8 billion years ago). Inside of these stellar furnaces, nuclear processes fused the hydrogen and helium made by the primordial nucleosynthesis into heavier elements.
An international team led by Brian Bucher of LLNL has made an important contribution to the ability to predict the unique chemical signature left by these early stars with the first direct measurement under stellar conditions of an important nuclear reaction. The research appears in the June 26 issue of the journal, Physical Review Letters.

 by Daily Domer Staff

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