About: http://webisa.webdatacommons.org/19813490

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	where a is the diameter of the galaxy, G is the gravitational constant, Vr.m.s. is estimated from the width of the velocity profile, and k is a constant of
http://www.w3.org/ns/prov#wasQuotedFrom	caltech.edu