PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The observed molecular emission lines are suitable for the observation of high-density regions like a galactic center, and NGC 1097 is a galaxy that already proved to have an active supermassive black hole at its center by a preceding study.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org