Export citation

Export citation

Choose format for download:

Download Citation
  • Letter

f(R) gravity after the detection of the orbital precession of the S2 star around the Galactic Center massive black hole

Ivan De Martino1,2,*, Riccardo della Monica1,†, and Mariafelicia De Laurentis3,4,‡

  • 1Universidad de Salamanca, Facultad de Ciencias, Física Teórica, Salamanca, Plaza de la Merced s/n. 37008, Spain
  • 2Dipartimento di Fisica, Università di Torino, Via P. Giuria 1, I-10125 Torino, Italy
  • 3Dipartimento di Fisica, Universitá di Napoli “Federico II”, Complesso Universitario di Monte S. Angelo, Edificio G, Via Cinthia, I-80126 Napoli, Italy
  • 4INFN Sezione di Napoli, Complesso Universitario di Monte S. Angelo, Edificio G, Via Cinthia, I-80126 Napoli, Italy

  • *ivan.demartino@usal.es
  • †rdellamonica@usal.es
  • ‡mariafelicia.delaurentis@unina.it

Phys. Rev. D 104, L101502 – Published 16 November, 2021

DOI: https://doi.org/10.1103/PhysRevD.104.L101502

Abstract

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 1σ 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 λ<6300  AU with the strength of the Yukawa potential restricted to δ=−0.01−0.14+0.61.

Physics Subject Headings (PhySH)

Authorization Required

We need you to provide your credentials before accessing this content.

Supplemental Material (Subscription Required)

References (Subscription Required)

Outline

Information

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation