Published January 1, 2022
| Version v1
Journal article
Open
Constraining wormhole geometries using the orbit of S2 star and the Event Horizon Telescope
Creators
- 1. Physics Department, State University of Tetovo, Ilinden Street nn, Tetovo, 1200, North Macedonia
- 2. Department of Physics, Dyal Singh College, University of Delhi, Delhi, 110003, India
- 3. Engineering Faculty, Başkent University, Bağlıca Campus, Ankara, 06790, Turkey
- 4. Institute for Theoretical Physics and Cosmology, Zhejiang University of Technology, Hangzhou, 310023, China
- 5. Center for Field Theory and Particle Physics and Department of Physics, Fudan University, Shanghai, 200438, China
Description
In this paper we study the possibility of having a wormhole (WH) as a candidate for the Sgr A ${}^{\star }$ central object and test this idea by constraining their geometry using the motion of S2 star and the reconstructed shadow images. In particular, we consider three WH models, including WHs in Einstein theory, brane-world gravity, and Einstein–Dirac–Maxwell theory. To this end, we have constrained the WH throat using the motion of S2 star and shown that the flare out condition is satisfied. We also consider the accretion of infalling gas model and study the accretion rate and the intensity of the electromagnetic radiation as well as the shadow images.
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