ART

An electroweak star is a theoretical type of exotic star, whereby the gravitational collapse of the star is prevented by radiation pressure resulting from electroweak burning, that is, the energy released by conversion of quarks to leptons through the electroweak force. This process occurs in a volume at the star's core approximately the size of an apple, containing about two Earth masses[1] and reaching temperatures on the order of 1015 K.[2]


Formation

The stage of life of a star that produces an electroweak star is theorized to occur after a supernova collapse. Electroweak stars are denser than quark stars, and may form when quark degeneracy pressure is no longer able to withstand gravitational attraction, but may still be withstood by electroweak burning radiation pressure. This phase of a star's life may last upwards of 10 million years.[1]

The energy output of an electroweak star is limited by the quark supply rate, which is dictated by gravitational collapse. Each interaction converts nine quarks into three anti-leptons, violating conservation of baryon and lepton number while preserving B−L, generating around 300 GeV per interaction. The energy diffuses out of the star as a mixture of neutrinos and photons. Electroweak stars could be identified through the equal number of neutrinos emitted of all three generations, taking into account neutrino oscillation.[2]
See also

Electroweak force
Chiral anomaly
Sphaleron
Quark nova
Quark star
Preon star
Lepton
Quark
Degenerate matter
Degeneracy pressure

References

Shiga, D. (4 January 2010). "Exotic stars may mimic big bang". New Scientist. Retrieved 18 February 2010.

Dai, De-Chang; Lue, Arthur; Starkman, Glenn; Stojkovic, Dejan (6 December 2010). "Electroweak stars: How nature may capitalize on the standard model's ultimate fuel". Journal of Cosmology and Astroparticle Physics. 2010 (12): 004.arXiv:0912.0520. Bibcode:2010JCAP...12..004D. doi:10.1088/1475-7516/2010/12/004. ISSN 1475-7516. S2CID 118417017.

Sources

"Theorists Propose a New Way to Shine – And a New Kind of Star: 'Electroweak'". ScienceDaily. 15 December 2009. Retrieved 16 December 2009.
"A New Way To Shine, A New Kind Of Star". SpaceDaily. 16 December 2009. Retrieved 16 December 2009.
"Theorists propose a new way to shine — and a new kind of star". Astronomy Magazine. 15 December 2009. Retrieved 16 December 2009.
"Astronomers Predict New Class of 'Electroweak' Star". Technology Review. 10 December 2009. Retrieved 16 December 2009.

Further reading

Dai, De-Chang; Lue, Arthur; Starkman, Glenn; Stojkovic, Dejan (2010). "Electroweak stars: How nature may capitalize on the standard model's ultimate fuel". Journal of Cosmology and Astroparticle Physics. 2010 (12): 004.arXiv:0912.0520. Bibcode:2010JCAP...12..004D. doi:10.1088/1475-7516/2010/12/004. S2CID 118417017.

External links

Vieru, Tudor (15 December 2009). "New type of cosmic objects: Electroweak stars". Softpedia. Retrieved 16 December 2009.

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Stars
Formation

Accretion Molecular cloud Bok globule Young stellar object
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Shell B[e]

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Hypothetical

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Structure

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Related articles

Substellar object
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Supernovae
Classes

Type Ia Type Ib and Ic Type II (IIP, IIL, IIn, and IIb) Hypernova Superluminous Pair-instability


Supernova&galaxia.png
G299-Remnants-SuperNova-Type1a-20150218.jpg
Physics of

Calcium-rich Carbon detonation Foe Near-Earth Phillips relationship Nucleosynthesis
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Related

Imposter
pulsational pair-instability Failed Gamma-ray burst Kilonova Luminous red nova Nova Pulsar kick Quark-nova Symbiotic nova

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Hypergiant
yellow Luminous blue variable Supergiant
blue red yellow White dwarf
related links Wolf–Rayet star

Remnants

Supernova remnant
Pulsar wind nebula Neutron star
pulsar magnetar related links Stellar black hole
related links Compact star
quark star exotic star Zombie star Local Bubble Superbubble
Orion–Eridanus

Discovery

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Notable

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ASAS-SN Calán/Tololo Survey High-Z Supernova Search Team Katzman Automatic Imaging Telescope Monte Agliale Supernovae and Asteroid Survey Nearby Supernova Factory Sloan Supernova Survey Supernova/Acceleration Probe Supernova Cosmology Project SuperNova Early Warning System Supernova Legacy Survey Texas Supernova Search

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