Extended Data Figure 3: Distribution of mass as function of spin and average radius of the orbits as inferred from the dynamical model.
From: A supermassive black hole in an ultra-compact dwarf galaxy
The average spin is defined as 
, where 
is the average angular momentum along the z-direction, 
is the average radius, and 
is the average second moment of the orbit. Several distinct components are visible. Although 70% of the mass is on co-rotating orbits with 
(shown as red and blue lines), there is also a significant amount of mass in components without rotation and counter-rotation.
