BHI Colloquium


Monday, November 8, 2021, 11:00am to 12:00pm

Razieh Emami (Astronomy) - BHI

Title: Probing the Physics near to the SMBHs

Abstract: The most recent polarimetric results from the Event Horizon Telescope has been extremely successful in elevating our understanding of the accretion state of M87, with the best ever constraints on its linear polarization. Thanks to this fundamental achievement, we are able to probe the composition of the plasma as well as the magnetic field structure near M87. I this presentation, I will firstly use the EHT recent polarimetric results to put constrains on the plasma composition near to the M87. I will then, talk about probing the structure of the magnetic field and the emission physics in M87, comparing the most recent semi-analytic results, from the ring model, with the full GRMHD simulation predictions from MAD and SANE. Next, I will make a proposal on using a new correlation function in probing the accretion vs the BH spin. Finally, I will briefly introduce some of our other focused studies relevant to the EHT/ngeht. 

Bio: Razieh Emami is a postdoc at the center for astrophysics. She has worked on a variety of different topics, including early universe cosmology, massive neutrinos, gravitational waves, TDES, galaxy evolution and BH physics. As a new member of the Event Horizon Telescope (EHT) and its next generation (ngeht), she is currently mostly focused on various topics relevant to the EHT, including BH imaging, spectral analysis, model fitting. Most recently, she got very interested in sensor sampling for the ngeht science. 



See also: Astronomy