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- Helium_flash abstract "A helium flash is the runaway fusion of helium in the core of low mass stars of less than about 2.25 solar masses and greater than about 0.5 solar mass, or on the surface of an accreting white dwarf star. A helium flash occurs in these situations because the helium is degenerate, meaning it is supported against gravity by quantum mechanical pressure rather than thermal pressure. Thus an increase in the temperature in the material undergoing fusion does not act to expand the material and by doing so cool it, and there is no regulation of the rate of fusion. The subsequent runaway nuclear chain-reaction explodes and emits energy at a rate comparable to the whole Milky Way, but only for a few seconds. The energy is absorbed by the star and unseen. It ends when the material is heated to the point where thermal pressure again becomes dominant, and the material then expands and cools. The helium flash, undetected by observation, is described by astrophysical models.".
- Helium_flash thumbnail Helium_flash.svg?width=300.
- Helium_flash wikiPageID "507854".
- Helium_flash wikiPageRevisionID "605521677".
- Helium_flash hasPhotoCollection Helium_flash.
- Helium_flash subject Category:Astrophysics.
- Helium_flash subject Category:Stellar_evolution.
- Helium_flash comment "A helium flash is the runaway fusion of helium in the core of low mass stars of less than about 2.25 solar masses and greater than about 0.5 solar mass, or on the surface of an accreting white dwarf star. A helium flash occurs in these situations because the helium is degenerate, meaning it is supported against gravity by quantum mechanical pressure rather than thermal pressure.".
- Helium_flash label "Błysk helowy".
- Helium_flash label "Flash de hélio".
- Helium_flash label "Flash de l'hélium".
- Helium_flash label "Flash del helio".
- Helium_flash label "Flash dell'elio".
- Helium_flash label "Helium flash".
- Helium_flash label "Helium-Blitz".
- Helium_flash label "Heliumflits".
- Helium_flash label "Гелиевая вспышка".
- Helium_flash label "وميض هيليوم".
- Helium_flash label "ヘリウムフラッシュ".
- Helium_flash label "氦閃".
- Helium_flash sameAs Heliový_záblesk.
- Helium_flash sameAs Helium-Blitz.
- Helium_flash sameAs Flash_del_helio.
- Helium_flash sameAs Flash_de_l'hélium.
- Helium_flash sameAs Flash_dell'elio.
- Helium_flash sameAs ヘリウムフラッシュ.
- Helium_flash sameAs 헬륨섬광.
- Helium_flash sameAs Heliumflits.
- Helium_flash sameAs Błysk_helowy.
- Helium_flash sameAs Flash_de_hélio.
- Helium_flash sameAs m.02jqgn.
- Helium_flash sameAs Q865098.
- Helium_flash sameAs Q865098.
- Helium_flash wasDerivedFrom Helium_flash?oldid=605521677.
- Helium_flash depiction Helium_flash.svg.
- Helium_flash isPrimaryTopicOf Helium_flash.
