The Power of Imaging: Constraining the Plasma Properties of GRMHD Simulations using EHT Observations of Sgr A*

Understand

Recent advances in general relativistic magnetohydrodynamic simulations have expanded and improved our understanding of the dynamics of black-hole accretion disks.

• However, current simulations do not capture the thermodynamics of electrons in the low density accreting plasma.
• This poses a significant challenge in predicting accretion flow images and spectra from first principles.
• Because of this, simplified emission models have often been used, with widely different configurations (e.g., disk- versus jet-dominated emission), and were able to account for the observed spectral properties of accreting black-holes.