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Constraining Wormhole Geometries Using The Orbit Of S2 Star And The Event Horizon Telescope
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 ...
X-ray reflection spectroscopy with Kaluza-Klein black holes
Kaluza-Klein theory is a popular alternative theory of gravity, with both non-rotating and rotating black hole solutions known. This allows for the possibility that the theory could be observationally tested. We present a ...