AART: Adaptive Analytical Ray Tracing
Abstract
AART (Adaptive Analytical Ray Tracing) exploits the integrability properties of the Kerr spacetime to compute high-resolution black hole images and their visibility amplitude on long interferometric baselines. It implements a non-uniform adaptive grid on the image plane suitable to study black hole photon rings (narrow ring-shaped features, predicted by general relativity but not yet observed). The code implements all the relevant equations required to compute the appearance of equatorial sources on the (far) observer's screen.
- Publication:
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Astrophysics Source Code Library
- Pub Date:
- February 2023
- Bibcode:
- 2023ascl.soft02023C
- Keywords:
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- Software