About: http://webisa.webdatacommons.org/177958152

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	Acceleration and capture of charged particles by the gravitational field of a star, black hole, or galaxy is a source of energetic cosmic X rays.
http://www.w3.org/ns/prov#wasQuotedFrom	britannica.com