Reconstruction of Static Black Hole Images Using Simple Geometric Forms

Understand

General Relativity predicts that the emission close to a black hole must be lensed by its strong gravitational field, illuminating the last photon orbit.

• This results in a dark circular area known as the black hole 'shadow'.
• The Event Horizon Telescope (EHT) is a (sub)mm VLBI network capable of Schwarzschild-radius resolution on Sagittarius A* (or Sgr A*), the 4 million solar mass black hole at the Galactic Center.
• The goals of the Sgr A* observations include resolving and measuring the details of its morphology.