Statements (49)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
variable star
binary star system |
| gptkbp:accretionDisk |
present in most systems
|
| gptkbp:accretionFrom |
donor star to white dwarf
|
| gptkbp:conducts |
dwarf nova outburst
nova outburst nova-like outburst |
| gptkbp:discoveredBy |
gptkb:John_Russell_Hind
|
| gptkbp:distance |
hundreds to thousands of light-years
|
| gptkbp:donorStarType |
stellar classification
red supergiant |
| gptkbp:emits |
gptkb:X-rays
ultraviolet light infrared light optical light |
| gptkbp:example |
gptkb:V1500_Cygni
AM Herculis SS Cygni U Geminorum Z Camelopardalis |
| gptkbp:firstDescribed |
19th century
|
| gptkbp:foundIn |
gptkb:Milky_Way
|
| gptkbp:hasComponent |
white dwarf
donor star |
| https://www.w3.org/2000/01/rdf-schema#label |
Cataclysmic variable stars
|
| gptkbp:magneticFieldStrength |
moderate in intermediate polars
strong in polars weak in non-magnetic systems |
| gptkbp:massTransfer |
gptkb:Roche_lobe_overflow
|
| gptkbp:observedBy |
space telescopes
ground-based telescopes |
| gptkbp:outburstAmplitude |
2 to 6 magnitudes
|
| gptkbp:outburstCause |
instabilities in accretion disk
|
| gptkbp:outburstDuration |
days to weeks
|
| gptkbp:periodRange |
1.3 hours to 10 hours
|
| gptkbp:powerSource |
accretion
|
| gptkbp:spectralType |
varied
|
| gptkbp:studiedIn |
astrophysics
|
| gptkbp:subclassOf |
gptkb:nun
white dwarf intermediate polars polars nova-like variable |
| gptkbp:variant |
irregular
periodic eruptive |
| gptkbp:whiteDwarfType |
degenerate star
|
| gptkbp:bfsParent |
gptkb:Magnetic_Braking
|
| gptkbp:bfsLayer |
6
|