Silhouette of M87*: A new window to peek into the world of hidden dimensions
Indrani BanerjeeSchool of Physical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, IndiaSumanta ChakrabortySchool of Mathematical and Computational Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, IndiaSoumitra SenGuptaSchool of Physical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
2020en
ABI
Abstract
The recent observation of the shadow of the supermassive black hole M87*, located at the center of the M87 galaxy, by the Event Horizon Telescope Collaboration has opened up a new window to probe the strong gravity regime. In this paper, we explicitly demonstrate the consequences of this observation on brane world black holes, characterized by existence of a negative tidal charge. Our results based on three observables associated with the shadow, namely, angular diameter, deviation from circularity, and axis ratio reveal that the existence of a negative tidal charge is more favored, possibly marking a deviation from general relativity.
Identifiers
Citations and references
Cited by 50 references