Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
astrophysical concept
|
| gptkbp:alsoKnownAs |
Kelvin–Helmholtz time
|
| gptkbp:appliesTo |
stars
|
| gptkbp:contrastsWith |
dynamical timescale
nuclear timescale |
| gptkbp:describes |
time for a star to radiate away its gravitational potential energy
|
| gptkbp:example |
~30 million years for the Sun
|
| gptkbp:form |
t_KH = GM^2/(RL)
|
| gptkbp:hasUnit |
seconds
|
| https://www.w3.org/2000/01/rdf-schema#label |
Kelvin–Helmholtz timescale
|
| gptkbp:namedAfter |
gptkb:Hermann_von_Helmholtz
gptkb:William_Thomson |
| gptkbp:relatedTo |
astrophysics
|
| gptkbp:significance |
important for pre-main-sequence stars
sets contraction time for protostars |
| gptkbp:usedIn |
stellar evolution theory
|
| gptkbp:bfsParent |
gptkb:Kelvin–Helmholtz_mechanism
|
| gptkbp:bfsLayer |
7
|