期刊
SCIENCE
卷 365, 期 6454, 页码 664-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aav8137
关键词
-
资金
- National Key Research and Development Program of China [2016YFD0100404]
- National Natural Science Foundation of China [91535108]
- Recruitment Program of Global Experts
- Fundamental Research Funds for the Central Universities
The general theory of relativity predicts that a star passing close to a supermassive black hole should exhibit a relativistic redshift. In this study, we used observations of the Galactic Center star S0-2 to test this prediction. We combined existing spectroscopic and astrometric measurements from 1995-2017, which cover S0-2's 16-year orbit, with measurements from March to September 2018, which cover three events during S0-2's closest approach to the black hole. We detected a combination of special relativistic and gravitational redshift, quantified using the redshift parameter gamma. Our result, gamma = 0.88 +/- 0.17, is consistent with general relativity (gamma = 1) and excludes a Newtonian model (gamma = 0) with a statistical significance of 5 sigma.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据