Speaker
Maciek Wielgus
(Institute of Astrophysics in Andalusia, Granada, Spain)
Description
Very long baseline interferometry observations can now resolve event-horizon angular scales for at least 2 supermassive black holes, M87 and Sagittarius A. What is more, these observations give us access to resolved polarimetry, that constitute a particularly powerful tool for the diagnostic of the accretion flow and magnetic fields in the compact region. I will discuss how the polarization is used to analyze the Event Horizon Telescope (EHT) observations of M87 and Sagittarius A in order to make comparisons between numerical models and the reality, and what constraints can be made on quantities such as the magnetic field strength and geometry or the temperature of the electrons.
Primary authors
Maciek Wielgus
(Institute of Astrophysics in Andalusia, Granada, Spain)
Mr
Saurabh Saurabh
(Max Planck Institute for Radioastronomy, Bonn)
