期刊
PHYSICAL REVIEW D
卷 104, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.104.L101502
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资金
- FSE El FSE invierte en tu futuro o Financiado por la Union Europea NextGenerationEU/PRTR
- grant The Milky Way and Dwarf Weights with SpaceScales - University of Torino
- Junta de Castilla y Len [SA096P20]
- FEDER [PGC2018-096038-B-I00]
- Consejeria de Educacin de la Junta de Castilla y Len
- European Social Fund
- Spanish Ministerio de Ciencia, Innovacin y Universidades
- Compagnia di S. Paolo (UniTO-CSP)
- [Ayuda IJCI2018-036198-I]
The GRAVITY Collaboration made a significant detection of the orbital precession of the S2 star around the Galactic Center supermassive black hole, confirming the validity of general relativity and not revealing any deviations from it. The parameter fSP was found to be consistent with general relativity at the 1 sigma level, but it may also potentially indicate effects of modified theories of gravity.
The GRAVITY Collaboration achieved a remarkable detection of the orbital precession of the S2 star around the Galactic Center supermassive black hole, providing yet another proof of the validity of general relativity. The departure from the Schwarzschild precession is encoded in the parameter fSP, which multiplies the predicted general relativistic precession. This parameter results in fSP = 1.10 +/- 0.19, which is consistent with general relativity (fSP = 1) at 1 sigma level. Nevertheless, this parameter may also hide an effect of the modified theories of gravity. Thus, we consider the orbital precession due to the Yukawa-like gravitational potential arising in the weak field limit of f(R)-gravity, and we use the current bound on the fSP to constrain the strength and the scale length of the Yukawa-like potential. No deviations from general relativity are revealed at the scale of A < 6300 AU with the strength of the Yukawa potential restricted to 6 = -0.01 thorn 0.61 -0.14.
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