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Orbital polarimetric tomography of a flare near the Sagittarius A supermassive black hole

Space Sciences

Orbital polarimetric tomography of a flare near the Sagittarius A supermassive black hole

A. Levis, A. A. Chael, et al.

Uncover the mysteries of high-energy flares near the Sagittarius A* supermassive black hole! Researchers Aviad Levis, Andrew A. Chael, Katherine L. Bouman, Maciek Wielgus, and Pratul P. Srinivasan present a groundbreaking 3D reconstruction revealing insights into the accretion processes and the intriguing dynamics of compact regions in the accretion disk.

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Playback language: English
Abstract
High-energy flares near the Sagittarius A* supermassive black hole, potentially caused by compact bright regions in the accretion disk, offer insights into accretion processes. This paper presents a 3D reconstruction of an April 11, 2017 flare using Atacama Large Millimeter/Submillimeter Array (ALMA) light curves. The reconstruction reveals compact, bright regions about six times the event horizon, suggesting clockwise rotation in a low-inclination orbital plane. This 3D reconstruction was achieved by integrating a neural 3D representation with a gravitational model for black holes, addressing an ill-posed tomography problem.
Publisher
Nature Astronomy
Published On
Jun 01, 2024
Authors
Aviad Levis, Andrew A. Chael, Katherine L. Bouman, Maciek Wielgus, Pratul P. Srinivasan
Tags
Sagittarius A*
supermassive black hole
accretion disk
3D reconstruction
high-energy flares
gravitational model
neural representation

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