Nordita Astrophysics Seminars

Estimating the spin of the black hole in MAXI J1820+070

by Yash Bhargava (IUCAA)

Europe/Stockholm
https://stockholmuniversity.zoom.us/j/530682073

https://stockholmuniversity.zoom.us/j/530682073

Description

In this talk, I will present our work on the recently detected black hole X-ray binary MAXI J1820+070. The source demonstrated intense variability and showed peculiar behaviour during its outburst. We study the variability using the power density spectra at various epochs of its outburst and identify type-C QPOs and broad noise components. We associate the features in the PDS with the frequencies predicted by the Relativistic precession model and estimate the physical parameters of the source. I will also discuss some of the model caveats and how we plan to address them in future.