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Relativistic redshift of the star S0-2 orbiting the Galactic Center supermassive black hole.
Do, Tuan; Hees, Aurelien; Ghez, Andrea; Martinez, Gregory D; Chu, Devin S; Jia, Siyao; Sakai, Shoko; Lu, Jessica R; Gautam, Abhimat K; O'Neil, Kelly Kosmo; Becklin, Eric E; Morris, Mark R; Matthews, Keith; Nishiyama, Shogo; Campbell, Randy; Chappell, Samantha; Chen, Zhuo; Ciurlo, Anna; Dehghanfar, Arezu; Gallego-Cano, Eulalia; Kerzendorf, Wolfgang E; Lyke, James E; Naoz, Smadar; Saida, Hiromi; Schödel, Rainer; Takahashi, Masaaki; Takamori, Yohsuke; Witzel, Gunther; Wizinowich, Peter.
Afiliación
  • Do T; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA. tdo@astro.ucla.edu.
  • Hees A; Sytèmes de Référence Temps Espace, Observatoire de Paris, Université Paris-Sciences-et-Lettres, Centre National de la Recherche Scientifique, Sorbonne Université, Laboratoire National de Métrologie et d'Essais, 61 Avenue de l'Observatoire, 75014 Paris, France.
  • Ghez A; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Martinez GD; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Chu DS; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Jia S; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Sakai S; Department of Astronomy, University of California, Berkeley, CA 94720, USA.
  • Lu JR; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Gautam AK; Department of Astronomy, University of California, Berkeley, CA 94720, USA.
  • O'Neil KK; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Becklin EE; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Morris MR; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Matthews K; Universities Space Research Association/Stratospheric Observatory for Infrared Astronomy, NASA Ames Research Center, Mail Stop N232-12, Moffet Field, CA 94035, USA.
  • Nishiyama S; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Campbell R; Division of Physics, Mathematics, and Astronomy, California Institute of Technology, MC 301-17, Pasadena, CA 91125, USA.
  • Chappell S; Faculty of Education, Miyagi University of Education, 149 Aramaki-aza-aoba, Aoba-ku, Sendai, Miyagi 980-0845, Japan.
  • Chen Z; W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743, USA.
  • Ciurlo A; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Dehghanfar A; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Gallego-Cano E; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Kerzendorf WE; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
  • Lyke JE; Institut de Planétologie et d'Astrophysique de Grenoble, 414 Rue de la Piscine, 38400 Saint-Martin-d'Héres, France.
  • Naoz S; Instituto de Astrofísica de Andalucía, Consejo Superior de Investigaciones Científicas, Glorieta de la Astronomía S/N, 18008 Granada, Spain.
  • Saida H; European Southern Observatory, Karl-Schwarzschild-Straße 2,85748 Garching bei München, Germany.
  • Schödel R; Center for Cosmology and Particle Physics, New York University, 726 Broadway, New York, NY 10003, USA.
  • Takahashi M; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA.
  • Takamori Y; Department of Computational Mathematics, Science, and Engineering, Michigan State University, East Lansing, MI 48824, USA.
  • Witzel G; W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743, USA.
  • Wizinowich P; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
Science ; 365(6454): 664-668, 2019 08 16.
Article en En | MEDLINE | ID: mdl-31346138
ABSTRACT
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 ϒ. Our result, ϒ = 0.88 ± 0.17, is consistent with general relativity (ϒ = 1) and excludes a Newtonian model (ϒ = 0) with a statistical significance of 5σ.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Science Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Science Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos