Solar power sun-like stars generally can produce lithium

As the lightest metal in the nature, lithium is driving the human modern communication equipment and transportation industry, is the world's countries to focus on important resources. So in the universe, lithium is very rare? On July 6, national astronomical observatory, Chinese Academy of Sciences researcher zhao team and international partners in the natural & ndash; Astronomy magazine published a latest research results, they found that can produce lithium sun-like stars.

　　“ The vast majority of lithium origin can be traced back to the same event, solar energy, that is the big bang occurred about 13. 8 billion years ago, is also the origin of the universe. ” Papers to corresponding author zhao said, solar net, & other; Lithium is connected to the big bang, interstellar matter and key elements of the stars, the study of lithium is always an important topic of the universe and the evolution of stars. ”

with the progress of observation technology, solar portal, people are constantly find some sun-like stars of lithium content in the atmosphere is very high, solar panels, in some cases, 100000 times higher than theoretical models predict. What led to the lithium content in the sun-like stars abnormally elevated? The problem in the past 40 years, has been plagued by the researchers.

with the aid of the Milky Way's archaeological project, guo shoujin telescope and gaia astronomical satellite survey data, the research team revealed the sun-like stars generally produce lithium. “ We studied the advanced system sun-like stars in the lithium abundance higher abnormal phenomenon. ” Lead author, said Dr Kumar & other; We are surprised to find that sun-like stars after helium flash lithium abundance higher abnormal phenomenon is very common. ”

the helium flash is a landmark event in sun-like stars, late in the evolution of stars, its core accumulation of helium, and lead to rising temperatures and pressures. The giant helium nuclei was lit, China solar energy network, intense nuclear burning out of control, and occurs as inside the star exploded a helium, in a few minutes release energy equivalent to the entire Milky Way.

theoretical model predicts that experience at this stage the star lithium content should be very low, but in fact, the researchers of observation found that these stars of lithium content on average more than 200 times the value predicted theory, this suggests that the helium flash sun-like stars create new lithium. Since helium flash is in the process of the evolution of sun-like stars will inevitably experience, so the sun-like stars after helium flash generally produce lithium.