Eddington limit

E60303

astrophysical concept radiation pressure limit

The Eddington limit is the maximum luminosity a star or accreting object can have before radiation pressure overcomes gravity and drives away its outer layers.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (6)

Label	Occurrences
Eddington limit canonical	4
Eddington luminosity	4
Eddington ratio	2
Eddington luminosity L_Edd	1
Eddington mass-luminosity relation	1
Salpeter time	1

Statements (48)

Predicate	Object
instanceOf	astrophysical concept ⓘ radiation pressure limit ⓘ
appliesTo	accreting black holes ⓘ accreting neutron stars ⓘ accreting white dwarfs ⓘ accretion disks ⓘ stars ⓘ
assumes	isotropic radiation field ⓘ spherical symmetry ⓘ steady-state conditions ⓘ
canBeExceededIn	beamed radiation sources ⓘ non-spherical accretion flows ⓘ super-Eddington accretion regimes ⓘ
consequenceOfExceeding	disruption of steady accretion ⓘ mass loss from the star or accretor ⓘ outward acceleration of stellar material ⓘ
defines	maximum luminosity of a star ⓘ maximum luminosity of an accreting object ⓘ
dependsOn	composition of the gas ⓘ mass of the central object ⓘ opacity of the material ⓘ
field	astrophysics ⓘ high-energy astrophysics ⓘ stellar astrophysics ⓘ
forSolarComposition	L_Edd ≈ 1.3×10^38 (M/M☉) erg s^-1 ⓘ L_Edd ≈ 3.3×10^4 (M/M☉) L☉ ⓘ
governs	maximum steady accretion luminosity ⓘ onset of strong stellar winds in massive stars ⓘ
historicalContext	introduced in early 20th century ⓘ
mathematicalForm	L_Edd = 4πGMc/κ ⓘ
namedAfter	Arthur Stanley Eddington ⓘ
physicalBasis	balance between radiation pressure and gravity ⓘ
proportionalTo	mass of the object ⓘ
relatedConcept	Eddington limit self-linksurface differs ⓘ surface form: Eddington luminosity Eddington limit self-linksurface differs ⓘ surface form: Eddington ratio opacity ⓘ radiation pressure ⓘ
symbol	L_Edd ⓘ
typicalCompositionAssumption	fully ionized hydrogen ⓘ
typicalOpacityAssumption	electron scattering opacity ⓘ
usedIn	X-ray binary modeling ⓘ accretion theory ⓘ active galactic nucleus modeling ⓘ black hole growth constraints ⓘ models of massive star evolution ⓘ quasar luminosity estimates ⓘ
usedToInfer	constraints on luminous accretors ⓘ upper limits on stellar masses ⓘ

Referenced by (13)

Full triples — surface form annotated when it differs from this entity's canonical label.

Chandrasekhar limit → relatedConcept → Eddington limit ⓘ

Edwin E. Salpeter → knownFor → Eddington limit ⓘ

this entity surface form: Salpeter time

Eddington limit → relatedConcept → Eddington limit self-linksurface differs ⓘ

this entity surface form: Eddington luminosity

Eddington limit → relatedConcept → Eddington limit self-linksurface differs ⓘ

this entity surface form: Eddington ratio

Arthur Stanley Eddington → knownFor → Eddington limit ⓘ

this entity surface form: Eddington luminosity

Arthur Stanley Eddington → knownFor → Eddington limit ⓘ

this entity surface form: Eddington mass-luminosity relation

Eddington → knownFor → Eddington limit ⓘ

subject surface form: Arthur Stanley Eddington

Eddington → knownFor → Eddington limit ⓘ

subject surface form: Arthur Stanley Eddington

this entity surface form: Eddington luminosity

Eddington number → hasComponent → Eddington limit ⓘ

this entity surface form: Eddington luminosity L_Edd

Eddington number → relatedConcept → Eddington limit ⓘ

this entity surface form: Eddington luminosity

Eddington number → relatedConcept → Eddington limit ⓘ

this entity surface form: Eddington ratio