Modeling the motion of a bright spot in jets from black holes M87* and SgrA*

TL;DR

This paper models the relativistic motion of bright spots in black hole jets, calculating their lensed images in Kerr spacetime, to aid in testing gravitational theories near supermassive black holes like M87* and SgrA*.

Contribution

It introduces a numerical method to simulate the lensed images of moving bright spots in black hole jets within Kerr spacetime, aiding gravitational theory verification.

Findings

Numerical calculations of lensed images in Kerr spacetime.

Application to supermassive black holes SgrA* and M87*.

Framework for testing gravity theories in strong fields.

Abstract

We study the general relativistic motion of a bright spot in a jet from an accreting black hole. The corresponding lensed images of the moving bright spot are calculated numerically in discrete time intervals along the bright spot trajectory in the Kerr space-time framework. As representative examples, we consider the cases of supermassive black holes SgrA* and M87*. Astrophysical observations of the moving bright spots in the jets from black holes provides the unique possibility for the verification of different gravitation theories in the strong field limit.