hasActiveGalacticNucleus
P133582
predicate
Indicates that a galaxy contains an active galactic nucleus, meaning its central region is currently emitting significant energy due to accretion onto a supermassive black hole.
Observed surface forms (3)
- AGNActivity ×1
- hasActiveGalacticNucleusType ×1
- possibleAGN ×1
Sample triples (12)
| Subject | Object |
|---|---|
| Abell 2597 | yes ⓘ |
| M58 | true ⓘ |
| M84 | low-luminosity AGN NERFINISHED ⓘ |
| NGC 4374 | true ⓘ |
| NGC 4388 | true ⓘ |
| NGC 4438 | true via predicate surface "possibleAGN" ⓘ |
| NGC 4579 | yes ⓘ |
| NGC 4639 | Seyfert 1 via predicate surface "hasActiveGalacticNucleusType" NERFINISHED ⓘ |
| NGC 4660 | weak or absent via predicate surface "AGNActivity" ⓘ |
| NGC 4696 | true ⓘ |
| NGC 7172 | true ⓘ |
| NGC 7314 | yes ⓘ |