Dudamel, an alumnus of El Sistema (a program, funded by the Venezuelan government, that is half social-justice initiative, half mass conservatory, reaching hundreds of thousands of children each year), was already a celebrity.
The relative precursor mass window was set to 200 (full width half mass).
When the half-mass radius of a cluster is small relative to the overall size, it has a dense core.
An example of this is Messier 3 (M3), which has an overall visible dimension of about 18 arc minutes, but a half-mass radius of only 1.12 arc minutes.
Note that the half-light radius includes stars in the outer part of the cluster that happen to lie along the line of sight, so theorists will also use the half-mass radius (rm)—the radius from the core that contains half the total mass of the cluster.
A single measurement consisted of 60 ratios, with a zero cycle at half-mass after every block of 15 ratios.
In 62 mass shootings over the last three decades, more than half of mass shooters used assault weapons with high-capacity magazines.
The shell would carry about half the mass of Betelgeuse or perhaps 10 times the mass of the Sun, which equals about 2 x 10^58 protons.
