Statements (49)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
supernova
Astronomical event |
| gptkbp:causedBy |
Accretion of matter
Merger of two white dwarfs |
| gptkbp:class |
Thermonuclear supernova
|
| gptkbp:compatibleWith |
Black hole
Neutron star |
| gptkbp:detonationMechanism |
Runaway carbon fusion
|
| gptkbp:discoveredBy |
gptkb:Walter_Baade
gptkb:Fritz_Zwicky |
| gptkbp:distance |
Observable up to billions of light-years
|
| gptkbp:duration |
Weeks to months
|
| gptkbp:elementSynthesized |
Heavy elements
|
| gptkbp:energyReleased |
~10^44 joules
|
| gptkbp:explodesFrom |
White dwarf
|
| gptkbp:firstObserved |
1930s
|
| gptkbp:hostedBy |
gptkb:galaxy
Elliptical galaxy |
| https://www.w3.org/2000/01/rdf-schema#label |
Type Ia Supernova
|
| gptkbp:importantFor |
Discovery of universe's accelerating expansion
Evidence for dark energy |
| gptkbp:keyFor |
Measuring Hubble constant
Determining universe's expansion rate |
| gptkbp:lightCurve |
Characteristic shape
|
| gptkbp:location |
Old stellar populations
All galaxy types |
| gptkbp:luminosity |
Consistent peak luminosity
|
| gptkbp:namedFor |
gptkb:Rudolph_Minkowski
|
| gptkbp:notableExample |
gptkb:SN_1991T
gptkb:SN_2011fe |
| gptkbp:observedBy |
gptkb:Hubble_Space_Telescope
Ground-based telescopes |
| gptkbp:peakAbsoluteMagnitude |
-19.3
|
| gptkbp:produces |
Iron
Silicon Nickel-56 |
| gptkbp:progenitorSystem |
Binary star system
|
| gptkbp:rating |
~1 per 1000 years per galaxy
|
| gptkbp:remnants |
Supernova remnant
No compact object |
| gptkbp:spectralType |
No hydrogen lines
Strong silicon absorption line |
| gptkbp:subspecies |
supernova
|
| gptkbp:usedFor |
gptkb:Standard_candle
Measuring cosmic distances |
| gptkbp:usedIn |
gptkb:Distance_ladder
Cosmology |
| gptkbp:bfsParent |
gptkb:White_Dwarf
|
| gptkbp:bfsLayer |
6
|