Getting the Most out of a Black Hole

05/22/2012 - 2:00pm to 3:00pm
Sasha Tchekhovskoy
Speaker affiliation: 
Recent advances in computer simulations of black hole  
accretion systems provide us with unprecedented insights into the  
physics of jet production in active galactic nuclei (AGN) and other  
black hole accretion systems.  For the first time, time-dependent 3D  
general relativistic numerical simulations allow us to determine the  
maximum efficiency with which radiatively inefficient accretion onto  
black holes can produce energy in the form of relativistic jets and  
winds.  I will present the dependence of this maximum efficiency on  
black hole spin and accretion disk thickness and discuss the  
implications for radio loud/quiet dichotomy of AGN and recent  
observations of high jet efficiency in a number of AGN.

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Center for Computational Relativity and Gravitation, School of Mathematical Sciences,
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