GRMHD simulations explore black hole accretion variability in X-ray binary transients
By
Chloe Klare
Summary
This article discusses GRMHD (General Relativistic Magnetohydrodynamic) simulations of black hole accretion flows, specifically examining variability in X-ray binary systems where one star is a black hole. The research, published in MNRAS by Raha, Mukhopadhyay, and Chatterjee from the Indian Institute of Science, explores initial conditions needed to reproduce observational characteristics in hard state X-ray binary transients. The paper investigates whether black hole accretion must be SANE (Standard And Normal Evolution) or MAD (Magnetically Arrested Disk), suggesting there may be more nuance to these classifications.
Source
bskyGRMHD simulations explore black hole accretion variability in X-ray binary transientsastrobites.orgKey quotes
· 2 pulledTrying to figure out the right initial conditions to reproduce the observational characteristics in your favorite X-ray binary (XRB which differs from your run-of-the mill binary star system in that one of the stars is a black hole instead, which is responsible for the eponymous X-rays) is a lot
Black hole accretion must be SANE or MAD, right? Maybe not...read to learn more!
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