Exploring the presence of a fifth force at the Galactic Center
Aims. We investigate the presence of a Yukawa-like correction to Newtonian gravity at the Galactic Center, leading to a new upper limit on the intensity of such a correction. Methods. We performed a Markov chain Monte Carlo (MCMC) analysis using the astrometric and spectroscopic data of star S2 collected at the Very Large Telescope by GRAVITY, NACO, and SINFONI instruments, covering the period from 1992 to 2022. Results. The precision of the GRAVITY instrument allows us to derive the most stringent upper limit at the Galactic Center for the intensity of the Yukawa contribution (∝ αe − λr ) of | α |< 0.003 for a scale length of λ = 3 ⋅ 10 13 m (∼ 200 AU). This is an improvement on all estimates obtained in previous works by roughly one order of magnitude.
Authors
- F. Haussmann
- C. Straubmeier (ORCID: https://orcid.org/0000-0002-0671-9302)
- M. Hartl
- S. Lacour (ORCID: https://orcid.org/0000-0002-6948-0263)
- G. Finger
- K. Perraut (ORCID: https://orcid.org/0000-0003-3099-757X)
- E. Wieprecht
- D. C. Ribeiro (ORCID: https://orcid.org/0000-0001-9990-7312)
- A. Drescher (ORCID: https://orcid.org/0000-0002-4494-5503)
- S. Hippler (ORCID: https://orcid.org/0000-0002-3912-6108)
- Pierre Léna (ORCID: https://orcid.org/0000-0002-9091-3051)
- Jean-Philippe Berger (ORCID: https://orcid.org/0000-0001-5025-0428)
- J. Shangguan (ORCID: https://orcid.org/0000-0002-4569-9009)
- G. Bourdarot
- A. Kaufer (ORCID: https://orcid.org/0000-0002-5270-3686)
- R. Davies (ORCID: https://orcid.org/0000-0003-4949-7217)
- P. T. de Zeeuw (ORCID: https://orcid.org/0000-0003-4175-3474)
- R. Genzel (ORCID: https://orcid.org/0000-0002-2767-9653)
- M. Horrobin
- T. Ott
- T. Paumard (ORCID: https://orcid.org/0000-0003-0655-0452)
- É. Gendron (ORCID: https://orcid.org/0000-0003-0021-6568)
- Nikhil More (ORCID: https://orcid.org/0000-0002-5950-1876)
- Pau Amaro‐Seoane (ORCID: https://orcid.org/0000-0003-3993-3249)
- J. Stadler (ORCID: https://orcid.org/0000-0001-5888-023X)
- L. Tacconi
- A. Eckart (ORCID: https://orcid.org/0000-0001-6049-3132)
- Vítor Cardoso (ORCID: https://orcid.org/0000-0003-0553-0433)
- V. Lapeyrère
- G. Perrin (ORCID: https://orcid.org/0000-0003-0680-0167)
- D. Lutz (ORCID: https://orcid.org/0000-0003-0291-9582)
- L. Jocou (ORCID: https://orcid.org/0000-0001-9376-1818)
- H. Feuchtgruber
- Silvia Scheithauer (ORCID: https://orcid.org/0000-0003-4559-0721)
- A. Amorim (ORCID: https://orcid.org/0000-0003-0638-2321)
- Thomas Shimizu (ORCID: https://orcid.org/0000-0002-2125-4670)
- S. Gillessen (ORCID: https://orcid.org/0000-0002-5708-0481)
- P. Kervella (ORCID: https://orcid.org/0000-0003-0626-1749)
- J.-B. Le Bouquin (ORCID: https://orcid.org/0000-0002-0493-4674)
- X. Haubois (ORCID: https://orcid.org/0000-0001-7878-7278)
- S. Rabien
- Thomas Henning (ORCID: https://orcid.org/0000-0002-1493-300X)
- P. García (ORCID: https://orcid.org/0000-0002-1678-3535)
- A. Foschi (ORCID: https://orcid.org/0000-0002-4636-637X)
- S. D. von Fellenberg (ORCID: https://orcid.org/0000-0002-9156-2249)
- R. Abuter
- N. Aimar (ORCID: https://orcid.org/0000-0001-5710-452X)
- J. Osorno
- N. M. Förster Schreiber (ORCID: https://orcid.org/0000-0003-4264-3381)
- K. Abd El Dayem
- Frédéric E. Vincent (ORCID: https://orcid.org/0000-0002-3855-0708)
- Frank Eisenhauer
- J. Woillez
- L. Jochum
- O. Straub
- Y. Clénet
- W. Brandner
- F. Mang (ORCID: https://orcid.org/0000-0001-8637-4051)
- E. Sturm
- I. Urso (ORCID: https://orcid.org/0009-0003-2105-522X)
- H. Bonnet
- M. S. Bordoni
Publication Details
- Journal
- Astronomy and Astrophysics
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1051/0004-6361/202554676
- Primary Topic
- History and Developments in Astronomy
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- European Commission
- Deutsche Forschungsgemeinschaft
- National Natural Science Foundation of China
- Bundesministerium für Bildung und Forschung
- Max-Planck-Gesellschaft
- European Southern Observatory
- Centre National de la Recherche Scientifique
- Centre National pour la Recherche Scientifique et Technique
- Observatoire de Paris, Université de Recherche Paris Sciences et Lettres
- European Research Council
- Fundação para a Ciência e a Tecnologia