Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
active galactic nucleus
|
| gptkbp:cataloguedIn |
gptkb:Veron-Cetty_&_Veron_catalogue
|
| gptkbp:centralEngine |
black hole
|
| gptkbp:characterizedBy |
featureless optical spectra
rapid variability strong polarization |
| gptkbp:discoveredBy |
gptkb:Edward_A._Fath
1929 |
| gptkbp:emits |
gptkb:X-rays
gptkb:gamma_rays gptkb:radio_waves |
| gptkbp:hasJet |
relativistic jet
|
| gptkbp:hasRedshiftRange |
0.03–1.5
|
| gptkbp:hasSpectralEnergyDistribution |
double-peaked
|
| gptkbp:hasVariabilityTimescale |
hours to days
|
| gptkbp:hostedBy |
gptkb:galaxy
|
| https://www.w3.org/2000/01/rdf-schema#label |
BL Lacertae objects
|
| gptkbp:isAGNType |
radio-loud
low-excitation |
| gptkbp:namedAfter |
gptkb:BL_Lacertae
|
| gptkbp:observedBy |
gptkb:Very_Large_Array
gptkb:Hubble_Space_Telescope gptkb:Fermi_Gamma-ray_Space_Telescope |
| gptkbp:polarization |
up to 30%
|
| gptkbp:relatedTo |
optically violent variable quasar
|
| gptkbp:subclassOf |
gptkb:blazar
|
| gptkbp:bfsParent |
gptkb:BL_Lac_objects
|
| gptkbp:bfsLayer |
8
|