Relativistic redshift of the star S0-2 orbiting the Galactic Center supermassive black hole

  title={Relativistic redshift of the star S0-2 orbiting the Galactic Center supermassive black hole},
  author={Tuan Do and Aur{\'e}lien Hees and Andrea M. Ghez and Gregory D Martinez and Devin S Chu and Siyao Jia and Shoko Sakai and Jessica R. Lu and Abhimat K. Gautam and Kelly Kosmo O'Neil and Eric Edward Becklin and Mark R. Morris and Keith Y. Matthews and Shogo Nishiyama and Randy Campbell and Samantha Chappell and Zhuo Chen and Anna Ciurlo and Arezu Dehghanfar and Eulalia Gallego-Cano and W. E. Kerzendorf and James E Lyke and Smadar Naoz and Hiromi Saida and Rainer Sch{\"o}del and Masaaki Takahashi and Yohsuke Takamori and Gunther Witzel and Peter Wizinowich},
  pages={664 - 668}
Gravitational redshift in the Galactic Center General relativity predicts that light emitted by an object in a strong gravitational field—for example, close to a black hole—should be shifted to longer wavelengths. This gravitational redshift does not exist in the Newtonian theory of gravity. Do et al. monitored the position and spectrum of the star S0-2 as it passed Sagittarius A*, the supermassive black hole at the center of the Milky Way. Around the closest part of S0-2's 16-year orbit, they… Expand
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