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Hilo High School Graduate Leads Important Astronomy Study

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A Hilo High School alumnus led a recent study that will pave the way for groundbreaking research on the nature of gravity and Einstein’s Theory of General Relativity.

David Chu of Hilo, an astronomy graduate student at UCLA, was the lead author of a paper investigating S0-2, a mysterious star situated near the center of our Milky Way galaxy. The study, which utilized data gathered at W.M. Keck Observatory on Maunakea, found that S0-2 is in fact a single star—not a binary system where two stars orbit one another—and debunks previous thinking.

As a result, S0-2 will be the focus of the first study to measure gravitational effects on a star by a black hole, ultimately testing the realm of gravity in Einstein’s theory. Gravity is the least-understood force among the five known forces in the universe.

“This is the first study to investigate S0-2 as a spectroscopic binary,” said Chu, who works within UCLA’s Galactic Center Group. “It’s incredibly rewarding. This study gives us confidence that a S0-2 binary system will not significantly affect our ability to measure gravitational redshift.”



Source :- bigislandnow

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