Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
galaxy type
|
| gptkbp:characteristic |
broad emission lines
active galactic nucleus visible broad-line region |
| gptkbp:contrastsWith |
Type II Seyfert galaxy
|
| gptkbp:discoveredBy |
gptkb:Carl_Seyfert
|
| gptkbp:emits |
strong X-ray radiation
strong ultraviolet radiation |
| gptkbp:example |
gptkb:NGC_4151
gptkb:NGC_5548 |
| gptkbp:foundIn |
spiral galaxies
|
| gptkbp:hasNucleus |
black hole
|
| https://www.w3.org/2000/01/rdf-schema#label |
Type I Seyfert galaxy
|
| gptkbp:redshift |
low to moderate
|
| gptkbp:studiedIn |
extragalactic astronomy
|
| gptkbp:subclassOf |
active galactic nucleus
|
| gptkbp:bfsParent |
gptkb:active_galactic_nucleus
|
| gptkbp:bfsLayer |
5
|